Mercurial > hg > xemacs-beta
annotate modules/postgresql/postgresql.c @ 5007:bb6a375da086
Relicense J. Kean Johnston's emodules.texi as GPL v2 or later. See
<870180fe1002080913m61bb2c1fy210bdafcc6c6893a@mail.gmail.com> in xemacs-patches.
| author | Jerry James <james@xemacs.org> |
|---|---|
| date | Tue, 09 Feb 2010 09:40:42 -0700 |
| parents | 4aebb0131297 |
| children | b5df3737028a |
| rev | line source |
|---|---|
| 996 | 1 /* |
| 2 postgresql.c -- Emacs Lisp binding to libpq.so | |
| 3 Copyright (C) 2000 Electrotechnical Laboratory, JAPAN. | |
| 4 Licensed to the Free Software Foundation. | |
| 5 | |
| 3820 | 6 Author: SL Baur <steve@xemacs.org> |
| 7 Maintainer: SL Baur <steve@xemacs.org> | |
| 996 | 8 |
| 9 Please send patches to this file to me first before submitting them to | |
| 10 xemacs-patches. | |
| 11 | |
| 12 | |
| 13 KNOWN PROBLEMS (Last update 15-March-2000) | |
| 14 + None. | |
| 15 | |
| 16 Implementation notes: | |
| 17 0. Supported PostgreSQL versions | |
| 18 This code was developed against libpq-6.5.3 and libpq-7.0-beta1. Earlier | |
| 19 versions may work. V7 support is more complete than V6.5 support. | |
| 20 1. Mule | |
| 21 Non-ASCII databases have been tested on both 6.5 and 7.0. | |
| 22 2. Asynchronous Operation | |
| 23 Starting with libpq-7.0, an asynchronous interface is offered. This | |
| 24 binding supports the asynchronous calls to a limited extent. Since the | |
| 25 XEmacs 21.2 core does not support a sensible interface to add managed but | |
| 26 unreadable (by XEmacs) file descriptors to the main select code, polling | |
| 27 is required to drive the asynchronous calls. XtAppAddInput would work | |
| 28 fine, but we want to be able to use the database when running strictly in | |
| 29 tty mode. | |
| 30 3. Completeness | |
| 31 Various calls have been deliberately not exported to Lisp. The | |
| 32 unexported calls are either left-over backwards compatibility code that | |
| 33 aren't needed, calls that cannot be implemented sensibly, or calls that | |
| 34 cannot be implemented safely. A list of all global functions in libpq | |
| 35 but not exported to Lisp is below. | |
| 36 4. Policy | |
| 37 This interface tries very hard to not set any policy towards how database | |
| 38 code in Emacs Lisp will be written. | |
| 39 5. Documentation | |
| 40 For full lisp programming documentation, see the XEmacs Lisp Reference | |
| 41 Manual. For PostgreSQL documentation, see the PostgreSQL distribution. | |
| 42 | |
| 43 TODO (in rough order of priority): | |
| 44 1. Asynchronous notifies need to be implemented to the extent they can be. | |
| 45 2. The large object interface needs work with Emacs buffers in addition | |
| 46 to files. Need two functions buffer->large_object, and large_object-> | |
| 47 buffer. | |
| 48 */ | |
| 49 | |
| 50 /* | |
| 51 Unimplemented functions: [TODO] | |
| 52 PQsetNoticeProcessor | |
| 53 | |
| 54 Implemented, but undocumented functions: [TODO] | |
| 55 PQgetline (copy in/out) | |
| 56 PQputline (copy in/out) | |
| 57 PQgetlineAsync (copy in/out Asynch.) | |
| 58 PQputnbytes (copy in/out Asynch.) | |
| 59 PQendcopy (copy in/out) | |
| 60 | |
| 61 Unsupported functions: | |
| 62 PQsetdbLogin -- This function is deprecated, has a subset of the | |
| 63 functionality of PQconnectdb, and is better done in Lisp. | |
| 64 PQsetdb -- Same as for PQsetdbLogin | |
| 65 PQsocket -- Abstraction error, file descriptors should not be leaked | |
| 66 into Lisp code | |
| 67 PQprint -- print to a file descriptor, deprecated, better done in Lisp | |
| 68 PQdisplayTuples -- deprecated | |
| 69 PQprintTuples -- really, really deprecated | |
| 70 PQmblen -- Returns the length in bytes of multibyte character encoded | |
| 71 string. | |
| 72 PQtrace -- controls debug print tracing to a tty. | |
| 73 PQuntrace -- Ditto. I don't see any way to do this sensibly. | |
| 74 PQoidStatus -- deprecated and nearly identical to PQoidValue | |
| 75 PQfn -- "Fast path" interface | |
| 76 lo_open (large object) [*] | |
| 77 lo_close (large object) [*] | |
| 78 lo_read (large object) [*] | |
| 79 lo_write (large object) [*] | |
| 80 lo_lseek (large object) [*] | |
| 81 lo_creat (large object) [*] | |
| 82 lo_tell (large object) [*] | |
| 83 lo_unlink (large object) [*] | |
| 84 */ | |
| 85 | |
| 86 #include <config.h> | |
| 87 | |
| 88 /* This must be portable with XEmacs 21.1 so long as it is the official | |
| 89 released version of XEmacs and provides the basis of InfoDock. The | |
| 90 interface to lcrecord handling has changed with 21.2, so unfortunately | |
| 91 we will need a few snippets of backwards compatibility code. | |
| 92 */ | |
| 93 #if (EMACS_MAJOR_VERSION == 21) && (EMACS_MINOR_VERSION < 2) | |
| 94 #define RUNNING_XEMACS_21_1 1 | |
| 95 #endif | |
| 96 | |
| 97 /* #define POSTGRES_LO_IMPORT_IS_VOID 1 */ | |
| 98 | |
| 99 #include "lisp.h" | |
| 100 | |
| 101 #include "buffer.h" | |
| 102 #include "postgresql.h" | |
| 103 #include "process.h" | |
| 1632 | 104 #ifdef HAVE_SHLIB |
| 105 # include "emodules.h" | |
| 106 #endif | |
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107 #include "sysdep.h" |
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108 #include "sysfile.h" |
| 996 | 109 |
| 110 #ifdef RUNNING_XEMACS_21_1 /* handle interface changes */ | |
| 111 #define PG_OS_CODING FORMAT_FILENAME | |
| 112 #define TO_EXTERNAL_FORMAT(a,from,b,to,c) GET_C_STRING_EXT_DATA_ALLOCA(from,FORMAT_FILENAME,to) | |
| 113 #else | |
| 114 #ifdef MULE | |
| 115 #define PG_OS_CODING get_coding_system_for_text_file (Vpg_coding_system, 1) | |
| 116 #else | |
| 117 #define PG_OS_CODING Qnative | |
| 118 #endif | |
| 119 Lisp_Object Vpg_coding_system; | |
| 120 #endif | |
| 121 | |
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122 #define CHECK_LIVE_CONNECTION(P) \ |
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123 do \ |
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124 { \ |
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125 if (!P || (PQstatus (P) != CONNECTION_OK)) \ |
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126 { \ |
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127 Lisp_Object err; \ |
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128 \ |
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129 if (P) \ |
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130 err = build_extstring (PQerrorMessage (P), PG_OS_CODING); \ |
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131 else \ |
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132 err = build_msg_string ("Bad value"); \ |
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133 signal_error (Qprocess_error, "Dead connection", err); \ |
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134 } \ |
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135 } \ |
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136 while (0) |
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137 |
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138 #define PUKE_IF_NULL(p) \ |
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139 do \ |
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140 { \ |
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141 if (!p) signal_error (Qinvalid_argument, "Bad value", Qunbound); \ |
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142 } \ |
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143 while (0) |
| 996 | 144 |
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145 #define SIGNAL_ERROR(p, reason) \ |
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146 do \ |
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147 { \ |
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148 signal_error (Qprocess_error, reason, \ |
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149 build_extstring (PQerrorMessage (p), PG_OS_CODING)); \ |
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150 } \ |
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151 while (0) |
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152 |
| 996 | 153 static Lisp_Object VXPGHOST; |
| 154 static Lisp_Object VXPGUSER; | |
| 155 static Lisp_Object VXPGOPTIONS; | |
| 156 static Lisp_Object VXPGPORT; | |
| 157 static Lisp_Object VXPGTTY; /* This needs to be blanked! */ | |
| 158 static Lisp_Object VXPGDATABASE; | |
| 159 static Lisp_Object VXPGREALM; | |
| 160 #ifdef MULE | |
| 161 static Lisp_Object VXPGCLIENTENCODING; | |
| 162 #endif /* MULE */ | |
| 163 | |
| 164 /* Other variables: | |
| 165 PGAUTHTYPE -- not used after PostgreSQL 6.5 | |
| 166 PGGEQO | |
| 167 PGCOSTINDEX | |
| 168 PGCOSTHEAP | |
| 169 PGTZ | |
| 170 PGDATESTYLE | |
| 171 */ | |
| 172 #ifndef HAVE_POSTGRESQLV7 | |
| 173 static Lisp_Object VXPGAUTHTYPE; | |
| 174 #endif | |
| 175 static Lisp_Object VXPGGEQO, VXPGCOSTINDEX, VXPGCOSTHEAP, VXPGTZ, VXPGDATESTYLE; | |
| 176 | |
| 177 static Lisp_Object Qpostgresql; | |
| 178 static Lisp_Object Qpg_connection_ok, Qpg_connection_bad; | |
| 179 static Lisp_Object Qpg_connection_started, Qpg_connection_made; | |
| 180 static Lisp_Object Qpg_connection_awaiting_response, Qpg_connection_auth_ok; | |
| 181 static Lisp_Object Qpg_connection_setenv; | |
| 182 | |
| 183 static Lisp_Object Qpqdb, Qpquser, Qpqpass, Qpqhost, Qpqport, Qpqtty; | |
| 184 static Lisp_Object Qpqoptions, Qpqstatus, Qpqerrormessage, Qpqbackendpid; | |
| 185 | |
| 186 static Lisp_Object Qpgres_empty_query, Qpgres_command_ok, Qpgres_tuples_ok; | |
| 187 static Lisp_Object Qpgres_copy_out, Qpgres_copy_in, Qpgres_bad_response; | |
| 188 static Lisp_Object Qpgres_nonfatal_error, Qpgres_fatal_error; | |
| 189 | |
| 190 static Lisp_Object Qpgres_polling_failed, Qpgres_polling_reading; | |
| 191 static Lisp_Object Qpgres_polling_writing, Qpgres_polling_ok; | |
| 192 static Lisp_Object Qpgres_polling_active; | |
| 193 /****/ | |
| 194 | |
| 195 /* PGconn is an opaque object and we need to be able to store them in | |
| 196 Lisp code because libpq supports multiple connections. | |
| 197 */ | |
| 198 Lisp_Object Qpgconnp; | |
| 199 | |
| 200 static Lisp_Object | |
| 201 make_pgconn (Lisp_PGconn *pgconn) | |
| 202 { | |
| 203 return wrap_pgconn (pgconn); | |
| 204 } | |
| 205 | |
| 1204 | 206 static const struct memory_description pgconn_description [] = { |
| 996 | 207 { XD_END } |
| 208 }; | |
| 209 | |
| 210 static Lisp_Object | |
| 211 #ifdef RUNNING_XEMACS_21_1 | |
| 2286 | 212 mark_pgconn (Lisp_Object UNUSED (obj), |
| 213 void (*UNUSED_ARG (markobj)) (Lisp_Object) ATTRIBUTE_UNUSED) | |
| 996 | 214 #else |
| 2286 | 215 mark_pgconn (Lisp_Object UNUSED (obj)) |
| 996 | 216 #endif |
| 217 { | |
| 218 return Qnil; | |
| 219 } | |
| 220 | |
| 221 static void | |
| 2286 | 222 print_pgconn (Lisp_Object obj, Lisp_Object printcharfun, |
| 223 int UNUSED (escapeflag)) | |
| 996 | 224 { |
| 225 char buf[256]; | |
| 226 PGconn *P; | |
| 227 ConnStatusType cst; | |
| 4932 | 228 const char *host="", *db="", *user="", *port=""; |
| 996 | 229 |
| 230 P = (XPGCONN (obj))->pgconn; | |
| 231 | |
| 232 if (!P) /* this may happen since we allow PQfinish() to be called */ | |
| 233 strcpy (buf, "#<PGconn DEAD>"); /* evil! */ | |
| 234 else if ((cst = PQstatus (P)) == CONNECTION_OK) | |
| 235 { | |
| 236 if (!(host = PQhost (P))) | |
| 237 host = ""; | |
| 238 port = PQport (P); | |
| 239 db = PQdb (P); | |
| 240 if (!(user = PQuser (P))) | |
| 241 user = ""; | |
| 242 sprintf (buf, "#<PGconn %s:%s %s/%s>", /* evil! */ | |
| 243 !strlen (host) ? "localhost" : host, | |
| 244 port, | |
| 245 user, | |
| 246 db); | |
| 247 } | |
| 248 else if (cst == CONNECTION_BAD) | |
| 249 strcpy (buf, "#<PGconn BAD>"); /* evil! */ | |
| 250 else | |
| 251 strcpy (buf, "#<PGconn connecting>"); /* evil! */ | |
| 252 | |
| 253 if (print_readably) | |
| 254 printing_unreadable_object ("%s", buf); | |
| 255 else | |
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256 write_cistring (printcharfun, buf); |
| 996 | 257 } |
| 258 | |
| 259 static Lisp_PGconn * | |
| 260 allocate_pgconn (void) | |
| 261 { | |
| 262 #ifdef RUNNING_XEMACS_21_1 | |
| 3024 | 263 Lisp_PGconn *pgconn = ALLOC_LCRECORD_TYPE (Lisp_PGconn, |
| 996 | 264 lrecord_pgconn); |
| 265 #else | |
| 3024 | 266 Lisp_PGconn *pgconn = ALLOC_LCRECORD_TYPE (Lisp_PGconn, |
| 996 | 267 &lrecord_pgconn); |
| 268 #endif | |
| 269 pgconn->pgconn = (PGconn *)NULL; | |
| 270 return pgconn; | |
| 271 } | |
| 272 | |
| 273 static void | |
| 274 finalize_pgconn (void *header, int for_disksave) | |
| 275 { | |
| 276 Lisp_PGconn *pgconn = (Lisp_PGconn *)header; | |
| 277 | |
| 278 if (for_disksave) | |
| 279 invalid_operation ("Can't dump an emacs containing PGconn objects", | |
| 280 make_pgconn (pgconn)); | |
| 281 | |
| 282 if (pgconn->pgconn) | |
| 283 { | |
| 284 PQfinish (pgconn->pgconn); | |
| 285 pgconn->pgconn = (PGconn *)NULL; | |
| 286 } | |
| 287 } | |
| 288 | |
| 289 #ifdef RUNNING_XEMACS_21_1 | |
| 290 DEFINE_LRECORD_IMPLEMENTATION ("pgconn", pgconn, | |
| 291 mark_pgconn, print_pgconn, finalize_pgconn, | |
| 292 NULL, NULL, | |
| 293 Lisp_PGconn); | |
| 294 #else | |
| 295 DEFINE_LRECORD_IMPLEMENTATION ("pgconn", pgconn, | |
| 296 0, /*dumpable-flag*/ | |
| 297 mark_pgconn, print_pgconn, finalize_pgconn, | |
| 298 NULL, NULL, | |
| 299 pgconn_description, | |
| 300 Lisp_PGconn); | |
| 301 #endif | |
| 302 /****/ | |
| 303 | |
| 304 /* PGresult is an opaque object and we need to be able to store them in | |
| 305 Lisp code. | |
| 306 */ | |
| 307 Lisp_Object Qpgresultp; | |
| 308 | |
| 309 static Lisp_Object | |
| 310 make_pgresult (Lisp_PGresult *pgresult) | |
| 311 { | |
| 312 return wrap_pgresult (pgresult); | |
| 313 } | |
| 314 | |
| 1204 | 315 static const struct memory_description pgresult_description [] = { |
| 996 | 316 { XD_END } |
| 317 }; | |
| 318 | |
| 319 | |
| 320 static Lisp_Object | |
| 321 #ifdef RUNNING_XEMACS_21_1 | |
| 2286 | 322 mark_pgresult (Lisp_Object UNUSED (obj), |
| 323 void (*UNUSED_ARG (markobj)) (Lisp_Object) ATTRIBUTE_UNUSED) | |
| 996 | 324 #else |
| 2286 | 325 mark_pgresult (Lisp_Object UNUSED (obj)) |
| 996 | 326 #endif |
| 327 { | |
| 328 return Qnil; | |
| 329 } | |
| 330 | |
| 331 #define RESULT_TUPLES_FMT "#<PGresult %s[%d] - %s>" | |
| 332 #define RESULT_CMD_TUPLES_FMT "#<PGresult %s[%s] - %s>" | |
| 333 #define RESULT_DEFAULT_FMT "#<PGresult %s - %s>" | |
| 334 static void | |
| 2286 | 335 print_pgresult (Lisp_Object obj, Lisp_Object printcharfun, |
| 336 int UNUSED (escapeflag)) | |
| 996 | 337 { |
| 338 char buf[1024]; | |
| 339 PGresult *res; | |
| 340 | |
| 341 res = (XPGRESULT (obj))->pgresult; | |
| 342 | |
| 343 if (res) | |
| 344 { | |
| 345 switch (PQresultStatus (res)) | |
| 346 { | |
| 347 case PGRES_TUPLES_OK: | |
| 348 /* Add number of tuples of result to output */ | |
| 349 sprintf (buf, RESULT_TUPLES_FMT, /* evil! */ | |
| 350 PQresStatus (PQresultStatus (res)), | |
| 351 PQntuples (res), | |
| 352 PQcmdStatus (res)); | |
| 353 break; | |
| 354 case PGRES_COMMAND_OK: | |
| 355 /* Add number of tuples affected by output-less command */ | |
| 356 if (!strlen (PQcmdTuples (res))) goto notuples; | |
| 357 sprintf (buf, RESULT_CMD_TUPLES_FMT, /* evil! */ | |
| 358 PQresStatus (PQresultStatus (res)), | |
| 359 PQcmdTuples (res), | |
| 360 PQcmdStatus (res)); | |
| 361 break; | |
| 362 default: | |
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363 notuples: |
| 996 | 364 /* No counts to print */ |
| 365 sprintf (buf, RESULT_DEFAULT_FMT, /* evil! */ | |
| 366 PQresStatus (PQresultStatus (res)), | |
| 367 PQcmdStatus (res)); | |
| 368 break; | |
| 369 } | |
| 370 } | |
| 371 else | |
| 372 strcpy (buf, "#<PGresult DEAD>"); /* evil! */ | |
| 373 | |
| 374 if (print_readably) | |
| 375 printing_unreadable_object ("%s", buf); | |
| 376 else | |
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377 write_cistring (printcharfun, buf); |
| 996 | 378 } |
| 379 | |
| 380 #undef RESULT_TUPLES_FMT | |
| 381 #undef RESULT_CMD_TUPLES_FMT | |
| 382 #undef RESULT_DEFAULT_FMT | |
| 383 | |
| 384 static Lisp_PGresult * | |
| 385 allocate_pgresult (void) | |
| 386 { | |
| 387 #ifdef RUNNING_XEMACS_21_1 | |
| 3024 | 388 Lisp_PGresult *pgresult = ALLOC_LCRECORD_TYPE (Lisp_PGresult, |
| 996 | 389 lrecord_pgresult); |
| 390 #else | |
| 3024 | 391 Lisp_PGresult *pgresult = ALLOC_LCRECORD_TYPE (Lisp_PGresult, |
| 996 | 392 &lrecord_pgresult); |
| 393 #endif | |
| 394 pgresult->pgresult = (PGresult *)NULL; | |
| 395 return pgresult; | |
| 396 } | |
| 397 | |
| 398 static void | |
| 399 finalize_pgresult (void *header, int for_disksave) | |
| 400 { | |
| 401 Lisp_PGresult *pgresult = (Lisp_PGresult *)header; | |
| 402 | |
| 403 if (for_disksave) | |
| 404 invalid_operation ("Can't dump an emacs containing PGresult objects", | |
| 405 make_pgresult (pgresult)); | |
| 406 | |
| 407 if (pgresult->pgresult) | |
| 408 { | |
| 409 PQclear (pgresult->pgresult); | |
| 410 pgresult->pgresult = (PGresult *)NULL; | |
| 411 } | |
| 412 } | |
| 413 | |
| 414 #ifdef RUNNING_XEMACS_21_1 | |
| 415 DEFINE_LRECORD_IMPLEMENTATION ("pgresult", pgresult, | |
| 416 mark_pgresult, print_pgresult, finalize_pgresult, | |
| 417 NULL, NULL, | |
| 418 Lisp_PGresult); | |
| 419 #else | |
| 420 DEFINE_LRECORD_IMPLEMENTATION ("pgresult", pgresult, | |
| 421 0, /*dumpable-flag*/ | |
| 422 mark_pgresult, print_pgresult, finalize_pgresult, | |
| 423 NULL, NULL, | |
| 424 pgresult_description, | |
| 425 Lisp_PGresult); | |
| 426 #endif | |
| 427 | |
| 428 /***********************/ | |
| 429 | |
| 430 /* notices */ | |
| 431 static void | |
| 2286 | 432 xemacs_notice_processor (void *UNUSED (arg), const char *msg) |
| 996 | 433 { |
| 434 warn_when_safe (Qpostgresql, Qnotice, "%s", msg); | |
| 435 } | |
| 436 | |
| 437 /* There are four ways (as of PostgreSQL v7) to connect to a database. | |
| 438 Two of them, PQsetdb and PQsetdbLogin, are deprecated. Both of those | |
| 439 routines take a number of positional parameters and are better done in Lisp. | |
| 440 Note that PQconnectStart does not exist prior to v7. | |
| 441 */ | |
| 442 | |
| 443 /* ###autoload */ | |
| 444 DEFUN ("pq-conn-defaults", Fpq_conn_defaults, 0, 0, 0, /* | |
| 445 Return a connection default structure. | |
| 446 */ | |
| 447 ()) | |
| 448 { | |
| 449 /* This function can GC */ | |
| 450 PQconninfoOption *pcio; | |
| 451 Lisp_Object temp, temp1; | |
| 452 int i; | |
| 453 | |
| 454 pcio = PQconndefaults(); | |
| 455 if (!pcio) return Qnil; /* can never happen in libpq-7.0 */ | |
|
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456 temp = |
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457 list1 (nconc2 (list4 (build_extstring (pcio[0].keyword, PG_OS_CODING), |
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458 build_extstring (pcio[0].envvar, PG_OS_CODING), |
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459 build_extstring (pcio[0].compiled, PG_OS_CODING), |
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460 build_extstring (pcio[0].val, PG_OS_CODING)), |
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461 list3 (build_extstring (pcio[0].label, PG_OS_CODING), |
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462 build_extstring (pcio[0].dispchar, PG_OS_CODING), |
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463 make_int (pcio[0].dispsize)))); |
| 996 | 464 |
| 465 for (i = 1; pcio[i].keyword; i++) | |
| 466 { | |
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467 temp1 = |
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468 list1 (nconc2 (list4 (build_extstring (pcio[i].keyword, PG_OS_CODING), |
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469 build_extstring (pcio[i].envvar, PG_OS_CODING), |
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470 build_extstring (pcio[i].compiled, PG_OS_CODING), |
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471 build_extstring (pcio[i].val, PG_OS_CODING)), |
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472 list3 (build_extstring (pcio[i].label, PG_OS_CODING), |
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473 build_extstring (pcio[i].dispchar, PG_OS_CODING), |
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474 make_int (pcio[i].dispsize)))); |
| 996 | 475 { |
| 476 Lisp_Object args[2]; | |
| 477 args[0] = temp; | |
| 478 args[1] = temp1; | |
| 479 /* Fappend GCPROs its arguments */ | |
| 480 temp = Fappend (2, args); | |
| 481 } | |
| 482 } | |
| 483 | |
| 484 return temp; | |
| 485 } | |
| 486 | |
| 487 /* PQconnectdb Makes a new connection to a backend. | |
| 488 PGconn *PQconnectdb(const char *conninfo) | |
| 489 */ | |
| 490 | |
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491 #ifdef HAVE_POSTGRESQLV7 |
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492 #define USED_IF_V7(x) x |
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493 #else |
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494 #define USED_IF_V7(x) UNUSED (x) |
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495 #endif |
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496 |
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497 static Lisp_Object |
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498 postgresql_connect (Lisp_Object conninfo, int USED_IF_V7 (async)) |
| 996 | 499 { |
| 500 PGconn *P; | |
| 501 Lisp_PGconn *lisp_pgconn; | |
| 502 | |
| 503 CHECK_STRING (conninfo); | |
| 504 | |
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505 P = ( |
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506 #ifdef HAVE_POSTGRESQLV7 |
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507 async ? PQconnectStart : |
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508 #endif |
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509 PQconnectdb) |
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510 (LISP_STRING_TO_EXTERNAL (conninfo, PG_OS_CODING)); |
| 996 | 511 if (P && (PQstatus (P) == CONNECTION_OK)) |
| 512 { | |
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513 (void) PQsetNoticeProcessor (P, xemacs_notice_processor, NULL); |
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514 lisp_pgconn = allocate_pgconn (); |
| 996 | 515 lisp_pgconn->pgconn = P; |
| 516 return make_pgconn (lisp_pgconn); | |
| 517 } | |
| 518 else | |
| 519 { | |
| 520 /* Connection failed. Destroy the connection and signal an error. */ | |
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521 |
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522 Lisp_Object errmsg; |
| 996 | 523 if (P) |
| 524 { | |
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525 errmsg = build_extstring (PQerrorMessage (P), PG_OS_CODING); |
| 996 | 526 PQfinish (P); |
| 527 } | |
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528 else |
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529 errmsg = build_msg_string ("Out of Memory?"); |
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530 signal_error (Qprocess_error, "Connecting to PostGreSQL backend", |
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531 errmsg); |
| 996 | 532 } |
| 533 } | |
| 534 | |
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535 /* ###autoload */ |
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536 DEFUN ("pq-connectdb", Fpq_connectdb, 1, 1, 0, /* |
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537 Make a new connection to a PostgreSQL backend. |
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538 */ |
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539 (conninfo)) |
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540 { |
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541 return postgresql_connect (conninfo, 0); |
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542 } |
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543 |
| 996 | 544 /* PQconnectStart Makes a new asynchronous connection to a backend. |
| 545 PGconn *PQconnectStart(const char *conninfo) | |
| 546 */ | |
| 547 | |
| 548 #ifdef HAVE_POSTGRESQLV7 | |
| 549 /* ###autoload */ | |
| 550 DEFUN ("pq-connect-start", Fpq_connect_start, 1, 1, 0, /* | |
| 551 Make a new asynchronous connection to a PostgreSQL backend. | |
| 552 */ | |
| 553 (conninfo)) | |
| 554 { | |
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555 return postgresql_connect (conninfo, 1); |
| 996 | 556 } |
| 557 | |
| 558 DEFUN ("pq-connect-poll", Fpq_connect_poll, 1, 1, 0, /* | |
| 559 Poll an asynchronous connection for completion | |
| 560 */ | |
| 561 (conn)) | |
| 562 { | |
| 563 PGconn *P; | |
| 564 PostgresPollingStatusType polling_status; | |
| 565 | |
| 566 CHECK_PGCONN (conn); | |
| 567 | |
| 568 P = (XPGCONN (conn))->pgconn; | |
| 569 CHECK_LIVE_CONNECTION (P); | |
| 570 | |
| 571 polling_status = PQconnectPoll (P); | |
| 572 switch (polling_status) | |
| 573 { | |
| 574 case PGRES_POLLING_FAILED: | |
| 575 /* Something Bad has happened */ | |
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576 SIGNAL_ERROR (P, "Polling asynchronous connection"); |
| 996 | 577 case PGRES_POLLING_OK: |
| 578 return Qpgres_polling_ok; | |
| 579 case PGRES_POLLING_READING: | |
| 580 return Qpgres_polling_reading; | |
| 581 case PGRES_POLLING_WRITING: | |
| 582 return Qpgres_polling_writing; | |
| 583 case PGRES_POLLING_ACTIVE: | |
| 584 return Qpgres_polling_active; | |
| 585 default: | |
| 586 /* they've added a new field we don't know about */ | |
| 587 signal_ferror (Qprocess_error, "Help! Unknown status code %08x from backend!", polling_status); | |
| 588 } | |
| 589 } | |
| 590 | |
| 591 #ifdef MULE | |
| 592 DEFUN ("pq-client-encoding", Fpq_client_encoding, 1, 1, 0, /* | |
| 593 Return client coding system. | |
| 594 */ | |
| 595 (conn)) | |
| 596 { | |
| 597 PGconn *P; | |
| 598 | |
| 599 CHECK_PGCONN (conn); | |
| 600 P = (XPGCONN (conn))->pgconn; | |
| 601 CHECK_LIVE_CONNECTION (P); | |
| 602 | |
| 603 return make_int (PQclientEncoding (P)); | |
| 604 } | |
| 605 | |
| 606 DEFUN ("pq-set-client-encoding", Fpq_set_client_encoding, 2, 2, 0, /* | |
| 607 Set client coding system. | |
| 608 */ | |
| 609 (conn, encoding)) | |
| 610 { | |
| 611 PGconn *P; | |
| 612 int rc; | |
| 613 char *c_encoding; | |
| 614 | |
| 615 CHECK_PGCONN (conn); | |
| 616 CHECK_STRING (encoding); | |
| 617 | |
| 618 P = (XPGCONN (conn))->pgconn; | |
| 619 CHECK_LIVE_CONNECTION (P); | |
| 620 | |
| 621 TO_EXTERNAL_FORMAT (LISP_STRING, encoding, | |
| 622 C_STRING_ALLOCA, c_encoding, Qnative); | |
| 623 | |
| 624 if ((rc = PQsetClientEncoding (P, c_encoding)) < 0) | |
| 625 signal_error (Qinvalid_argument, "bad encoding", Qunbound); | |
| 626 else | |
| 627 return make_int (rc); | |
| 628 } | |
| 629 | |
| 630 #endif | |
| 631 #endif /* HAVE_POSTGRESQLV7 */ | |
| 632 | |
| 633 /* PQfinish Close the connection to the backend. Also frees memory | |
| 634 used by the PGconn object. | |
| 635 void PQfinish(PGconn *conn) | |
| 636 */ | |
| 637 DEFUN ("pq-finish", Fpq_finish, 1, 1, 0, /* | |
| 638 Close the connection to the backend. | |
| 639 */ | |
| 640 (conn)) | |
| 641 { | |
| 642 PGconn *P; | |
| 643 | |
| 644 CHECK_PGCONN (conn); | |
| 645 P = (XPGCONN (conn))->pgconn; | |
| 646 PUKE_IF_NULL (P); | |
| 647 | |
| 648 PQfinish (P); | |
| 649 /* #### PQfinish deallocates the PGconn structure, so we now have a | |
| 650 dangling pointer. */ | |
| 651 /* Genocided all @'s ... */ | |
| 652 (XPGCONN (conn))->pgconn = (PGconn *)NULL; /* You feel DEAD inside */ | |
| 653 return Qnil; | |
| 654 } | |
| 655 | |
| 656 DEFUN ("pq-clear", Fpq_clear, 1, 1, 0, /* | |
| 657 Forcibly erase a PGresult object. | |
| 658 */ | |
| 659 (res)) | |
| 660 { | |
| 661 PGresult *R; | |
| 662 | |
| 663 CHECK_PGRESULT (res); | |
| 664 R = (XPGRESULT (res))->pgresult; | |
| 665 PUKE_IF_NULL (R); | |
| 666 | |
| 667 PQclear (R); | |
| 668 /* Genocided all @'s ... */ | |
| 669 (XPGRESULT (res))->pgresult = (PGresult *)NULL; /* You feel DEAD inside */ | |
| 670 | |
| 671 return Qnil; | |
| 672 } | |
| 673 | |
| 674 DEFUN ("pq-is-busy", Fpq_is_busy, 1, 1, 0, /* | |
| 675 Return t if PQgetResult would block waiting for input. | |
| 676 */ | |
| 677 (conn)) | |
| 678 { | |
| 679 PGconn *P; | |
| 680 | |
| 681 CHECK_PGCONN (conn); | |
| 682 P = (XPGCONN (conn))->pgconn; | |
| 683 CHECK_LIVE_CONNECTION (P); | |
| 684 | |
| 685 return PQisBusy (P) ? Qt : Qnil; | |
| 686 } | |
| 687 | |
| 688 DEFUN ("pq-consume-input", Fpq_consume_input, 1, 1, 0, /* | |
| 689 Consume any available input from the backend. | |
| 690 Returns nil if something bad happened. | |
| 691 */ | |
| 692 (conn)) | |
| 693 { | |
| 694 PGconn *P; | |
| 695 | |
| 696 CHECK_PGCONN (conn); | |
| 697 P = (XPGCONN (conn))->pgconn; | |
| 698 CHECK_LIVE_CONNECTION (P); | |
| 699 | |
| 700 return PQconsumeInput (P) ? Qt : Qnil; | |
| 701 } | |
| 702 | |
| 703 /* PQreset Reset the communication port with the backend. | |
| 704 void PQreset(PGconn *conn) | |
| 705 */ | |
| 706 DEFUN ("pq-reset", Fpq_reset, 1, 1, 0, /* | |
| 707 Reset the connection to the backend. | |
| 708 This function will close the connection to the backend and attempt to | |
| 709 reestablish a new connection to the same postmaster, using all the same | |
| 710 parameters previously used. This may be useful for error recovery if a | |
| 711 working connection is lost. | |
| 712 */ | |
| 713 (conn)) | |
| 714 { | |
| 715 PGconn *P; | |
| 716 | |
| 717 CHECK_PGCONN (conn); | |
| 718 P = (XPGCONN (conn))->pgconn; | |
| 719 PUKE_IF_NULL (P);/* we can resurrect a BAD connection, but not a dead one. */ | |
| 720 | |
| 721 PQreset (P); | |
| 722 | |
| 723 return Qnil; | |
| 724 } | |
| 725 | |
| 726 #ifdef HAVE_POSTGRESQLV7 | |
| 727 DEFUN ("pq-reset-start", Fpq_reset_start, 1, 1, 0, /* | |
| 728 Reset connection to the backend asynchronously. | |
| 729 */ | |
| 730 (conn)) | |
| 731 { | |
| 732 PGconn *P; | |
| 733 | |
| 734 CHECK_PGCONN (conn); | |
| 735 P = (XPGCONN (conn))->pgconn; | |
| 736 CHECK_LIVE_CONNECTION (P); | |
| 737 | |
| 738 if (PQresetStart (P)) return Qt; | |
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739 SIGNAL_ERROR (P, "Resetting connection"); |
| 996 | 740 } |
| 741 | |
| 742 DEFUN ("pq-reset-poll", Fpq_reset_poll, 1, 1, 0, /* | |
| 743 Poll an asynchronous reset for completion. | |
| 744 */ | |
| 745 (conn)) | |
| 746 { | |
| 747 PGconn *P; | |
| 748 PostgresPollingStatusType polling_status; | |
| 749 | |
| 750 CHECK_PGCONN (conn); | |
| 751 | |
| 752 P = (XPGCONN (conn))->pgconn; | |
| 753 CHECK_LIVE_CONNECTION (P); | |
| 754 | |
| 755 polling_status = PQresetPoll (P); | |
| 756 switch (polling_status) | |
| 757 { | |
| 758 case PGRES_POLLING_FAILED: | |
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759 SIGNAL_ERROR (P, "Polling asynchronous reset"); |
| 996 | 760 case PGRES_POLLING_OK: |
| 761 return Qpgres_polling_ok; | |
| 762 case PGRES_POLLING_READING: | |
| 763 return Qpgres_polling_reading; | |
| 764 case PGRES_POLLING_WRITING: | |
| 765 return Qpgres_polling_writing; | |
| 766 case PGRES_POLLING_ACTIVE: | |
| 767 return Qpgres_polling_active; | |
| 768 default: | |
| 769 /* they've added a new field we don't know about */ | |
| 770 signal_ferror (Qprocess_error, "Help! Unknown status code %08x from backend!", polling_status); | |
| 771 } | |
| 772 } | |
| 773 #endif | |
| 774 | |
| 775 DEFUN ("pq-request-cancel", Fpq_request_cancel, 1, 1, 0, /* | |
| 776 Attempt to request cancellation of the current operation. | |
| 777 | |
| 778 The return value is t if the cancel request was successfully | |
| 779 dispatched, nil if not (in which case conn->errorMessage is set). | |
| 780 Note: successful dispatch is no guarantee that there will be any effect at | |
| 781 the backend. The application must read the operation result as usual. | |
| 782 */ | |
| 783 (conn)) | |
| 784 { | |
| 785 PGconn *P; | |
| 786 | |
| 787 CHECK_PGCONN (conn); | |
| 788 P = (XPGCONN (conn))->pgconn; | |
| 789 CHECK_LIVE_CONNECTION (P); | |
| 790 | |
| 791 return PQrequestCancel (P) ? Qt : Qnil; | |
| 792 } | |
| 793 | |
| 794 /* accessor function for the PGconn object */ | |
| 795 DEFUN ("pq-pgconn", Fpq_pgconn, 2, 2, 0, /* | |
| 796 Accessor function for the PGconn object. | |
| 797 Currently recognized symbols for the field: | |
| 798 pq::db Database name | |
| 799 pq::user Database user name | |
| 800 pq::pass Database user's password | |
| 801 pq::host Hostname of PostgreSQL backend connected to | |
| 802 pq::port TCP port number of connection | |
| 803 pq::tty Debugging TTY (not used in Emacs) | |
| 804 pq::options Additional backend options | |
| 805 pq::status Connection status (either OK or BAD) | |
| 806 pq::error-message Last error message from the backend | |
| 807 pq::backend-pid Process ID of backend process | |
| 808 */ | |
| 809 (conn, field)) | |
| 810 { | |
| 811 PGconn *P; | |
| 812 | |
| 813 CHECK_PGCONN (conn); | |
| 814 P = (XPGCONN (conn))->pgconn; | |
| 815 PUKE_IF_NULL (P); /* BAD connections still have state to query */ | |
| 816 | |
| 817 if (EQ(field, Qpqdb)) | |
| 818 /* PQdb Returns the database name of the connection. | |
| 819 char *PQdb(PGconn *conn) | |
| 820 */ | |
|
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821 return build_extstring (PQdb(P), PG_OS_CODING); |
| 996 | 822 else if (EQ (field, Qpquser)) |
| 823 /* PQuser Returns the user name of the connection. | |
| 824 char *PQuser(PGconn *conn) | |
| 825 */ | |
|
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826 return build_extstring (PQuser(P), PG_OS_CODING); |
| 996 | 827 else if (EQ (field, Qpqpass)) |
| 828 /* PQpass Returns the password of the connection. | |
| 829 char *PQpass(PGconn *conn) | |
| 830 */ | |
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831 return build_extstring (PQpass(P), PG_OS_CODING); |
| 996 | 832 else if (EQ (field, Qpqhost)) |
| 833 /* PQhost Returns the server host name of the connection. | |
| 834 char *PQhost(PGconn *conn) | |
| 835 */ | |
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|
836 return build_extstring (PQhost(P), PG_OS_CODING); |
| 996 | 837 else if (EQ (field, Qpqport)) |
| 838 { | |
| 839 char *p; | |
| 840 /* PQport Returns the port of the connection. | |
| 841 char *PQport(PGconn *conn) | |
| 842 */ | |
| 843 if ((p = PQport(P))) | |
| 844 return make_int(atoi(p)); | |
| 845 else | |
| 846 return make_int(-1); | |
| 847 } | |
| 848 else if (EQ (field, Qpqtty)) | |
| 849 /* PQtty Returns the debug tty of the connection. | |
| 850 char *PQtty(PGconn *conn) | |
| 851 */ | |
|
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852 return build_extstring (PQtty(P), PG_OS_CODING); |
| 996 | 853 else if (EQ (field, Qpqoptions)) |
| 854 /* PQoptions Returns the backend options used in the connection. | |
| 855 char *PQoptions(PGconn *conn) | |
| 856 */ | |
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857 return build_extstring (PQoptions(P), PG_OS_CODING); |
| 996 | 858 else if (EQ (field, Qpqstatus)) |
| 859 { | |
| 860 ConnStatusType cst; | |
| 861 /* PQstatus Returns the status of the connection. The status can be | |
| 862 CONNECTION_OK or CONNECTION_BAD. | |
| 863 ConnStatusType PQstatus(PGconn *conn) | |
| 864 */ | |
| 865 switch ((cst = PQstatus (P))) | |
| 866 { | |
| 867 case CONNECTION_OK: return Qpg_connection_ok; | |
| 868 case CONNECTION_BAD: return Qpg_connection_bad; | |
| 869 #ifdef HAVE_POSTGRESQLV7 | |
| 870 case CONNECTION_STARTED: return Qpg_connection_started; | |
| 871 case CONNECTION_MADE: return Qpg_connection_made; | |
| 872 case CONNECTION_AWAITING_RESPONSE: return Qpg_connection_awaiting_response; | |
| 873 case CONNECTION_AUTH_OK: return Qpg_connection_auth_ok; | |
| 874 case CONNECTION_SETENV: return Qpg_connection_setenv; | |
| 875 #endif /* HAVE_POSTGRESQLV7 */ | |
| 876 default: | |
| 877 /* they've added a new field we don't know about */ | |
| 878 signal_ferror (Qprocess_error, "Help! Unknown connection status code %08x from backend!", cst); | |
| 879 } | |
| 880 } | |
| 881 else if (EQ (field, Qpqerrormessage)) | |
| 882 /* PQerrorMessage Returns the error message most recently generated | |
| 883 by an operation on the connection. | |
| 884 char *PQerrorMessage(PGconn* conn); | |
| 885 */ | |
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886 return build_extstring (PQerrorMessage(P), PG_OS_CODING); |
| 996 | 887 else if (EQ (field, Qpqbackendpid)) |
| 888 /* PQbackendPID Returns the process ID of the backend server handling | |
| 889 this connection. | |
| 890 int PQbackendPID(PGconn *conn); | |
| 891 */ | |
| 892 return make_int (PQbackendPID(P)); | |
| 893 else | |
| 894 signal_error (Qinvalid_argument, "bad PGconn accessor", Qunbound); | |
| 895 } | |
| 896 | |
| 897 /* Query functions */ | |
| 898 DEFUN ("pq-exec", Fpq_exec, 2, 2, 0, /* | |
| 899 Submit a query to Postgres and wait for the result. | |
| 900 */ | |
| 901 (conn, query)) | |
| 902 { | |
| 903 PGconn *P; | |
| 904 Lisp_PGresult *lisp_pgresult; | |
| 905 PGresult *R; | |
| 906 char *c_query; | |
| 907 | |
| 908 CHECK_PGCONN (conn); | |
| 909 CHECK_STRING (query); | |
| 910 | |
| 911 P = (XPGCONN (conn))->pgconn; | |
| 912 CHECK_LIVE_CONNECTION (P); | |
| 913 | |
| 914 TO_EXTERNAL_FORMAT (LISP_STRING, query, | |
| 915 C_STRING_ALLOCA, c_query, Qnative); | |
| 916 | |
| 917 R = PQexec (P, c_query); | |
| 918 { | |
| 4932 | 919 const Ascbyte *tag; |
| 920 char buf[BLCKSZ]; | |
| 996 | 921 |
| 922 if (!R) out_of_memory ("query: out of memory", Qunbound); | |
| 923 else | |
| 924 switch (PQresultStatus (R)) | |
| 925 { | |
| 926 case PGRES_BAD_RESPONSE: | |
| 927 tag = "bad response [%s]"; | |
| 928 goto err; | |
| 929 case PGRES_NONFATAL_ERROR: | |
| 930 tag = "non-fatal error [%s]"; | |
| 931 goto err; | |
| 932 case PGRES_FATAL_ERROR: | |
| 933 tag = "fatal error [%s]"; | |
| 934 err: | |
| 935 strncpy (buf, PQresultErrorMessage (R), sizeof (buf)); | |
| 936 buf [sizeof (buf) - 1] = '\0'; | |
| 937 PQclear (R); | |
| 938 signal_ferror (Qprocess_error, tag, buf); | |
| 939 /*NOTREACHED*/ | |
| 940 default: | |
| 941 break; | |
| 942 } | |
| 943 } | |
| 944 | |
| 945 lisp_pgresult = allocate_pgresult (); | |
| 946 lisp_pgresult->pgresult = R; | |
| 947 | |
| 948 return make_pgresult (lisp_pgresult); | |
| 949 } | |
| 950 | |
| 951 DEFUN ("pq-send-query", Fpq_send_query, 2, 2, 0, /* | |
| 952 Submit a query to Postgres and don't wait for the result. | |
| 953 Returns: t if successfully submitted | |
| 954 nil if error (conn->errorMessage is set) | |
| 955 */ | |
| 956 (conn, query)) | |
| 957 { | |
| 958 PGconn *P; | |
| 959 char *c_query; | |
| 960 | |
| 961 CHECK_PGCONN (conn); | |
| 962 CHECK_STRING (query); | |
| 963 | |
| 964 P = (XPGCONN (conn))->pgconn; | |
| 965 CHECK_LIVE_CONNECTION (P); | |
| 966 | |
| 967 TO_EXTERNAL_FORMAT (LISP_STRING, query, | |
| 968 C_STRING_ALLOCA, c_query, Qnative); | |
| 969 | |
| 970 if (PQsendQuery (P, c_query)) return Qt; | |
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971 else SIGNAL_ERROR (P, "Sending asynchronous query"); |
| 996 | 972 } |
| 973 | |
| 974 DEFUN ("pq-get-result", Fpq_get_result, 1, 1, 0, /* | |
| 975 Retrieve an asynchronous result from a query. | |
| 976 NIL is returned when no more query work remains. | |
| 977 */ | |
| 978 (conn)) | |
| 979 { | |
| 980 PGconn *P; | |
| 981 Lisp_PGresult *lisp_pgresult; | |
| 982 PGresult *R; | |
| 983 | |
| 984 CHECK_PGCONN (conn); | |
| 985 | |
| 986 P = (XPGCONN (conn))->pgconn; | |
| 987 CHECK_LIVE_CONNECTION (P); | |
| 988 | |
| 989 R = PQgetResult (P); | |
| 990 if (!R) return Qnil; /* not an error, there's no more data to get */ | |
| 991 | |
| 992 { | |
| 4932 | 993 const Ascbyte *tag; |
| 994 char buf[BLCKSZ]; | |
| 996 | 995 |
| 996 switch (PQresultStatus (R)) | |
| 997 { | |
| 998 case PGRES_BAD_RESPONSE: | |
| 999 tag = "bad response [%s]"; | |
| 1000 goto err; | |
| 1001 case PGRES_NONFATAL_ERROR: | |
| 1002 tag = "non-fatal error [%s]"; | |
| 1003 goto err; | |
| 1004 case PGRES_FATAL_ERROR: | |
| 1005 tag = "fatal error [%s]"; | |
| 1006 err: | |
| 1007 strncpy (buf, PQresultErrorMessage (R), sizeof (buf)); | |
| 1008 buf[sizeof (buf) - 1] = '\0'; | |
| 1009 PQclear (R); | |
| 1010 signal_ferror (Qprocess_error, tag, buf); | |
| 1011 /*NOTREACHED*/ | |
| 1012 default: | |
| 1013 break; | |
| 1014 } | |
| 1015 } | |
| 1016 | |
| 1017 lisp_pgresult = allocate_pgresult(); | |
| 1018 lisp_pgresult->pgresult = R; | |
| 1019 | |
| 1020 return make_pgresult (lisp_pgresult); | |
| 1021 } | |
| 1022 | |
| 1023 DEFUN ("pq-result-status", Fpq_result_status, 1, 1, 0, /* | |
| 1024 Return result status of the query. | |
| 1025 */ | |
| 1026 (result)) | |
| 1027 { | |
| 1028 PGresult *R; | |
| 1029 ExecStatusType est; | |
| 1030 | |
| 1031 CHECK_PGRESULT (result); | |
| 1032 R = (XPGRESULT (result))->pgresult; | |
| 1033 PUKE_IF_NULL (R); | |
| 1034 | |
| 1035 switch ((est = PQresultStatus (R))) { | |
| 1036 case PGRES_EMPTY_QUERY: return Qpgres_empty_query; | |
| 1037 case PGRES_COMMAND_OK: return Qpgres_command_ok; | |
| 1038 case PGRES_TUPLES_OK: return Qpgres_tuples_ok; | |
| 1039 case PGRES_COPY_OUT: return Qpgres_copy_out; | |
| 1040 case PGRES_COPY_IN: return Qpgres_copy_in; | |
| 1041 case PGRES_BAD_RESPONSE: return Qpgres_bad_response; | |
| 1042 case PGRES_NONFATAL_ERROR: return Qpgres_nonfatal_error; | |
| 1043 case PGRES_FATAL_ERROR: return Qpgres_fatal_error; | |
| 1044 default: | |
| 1045 /* they've added a new field we don't know about */ | |
|
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|
1046 signal_ferror (Qprocess_error, |
|
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|
1047 "Help! Unknown exec status code %08x from backend!", |
|
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|
1048 est); |
| 996 | 1049 } |
| 1050 } | |
| 1051 | |
| 1052 DEFUN ("pq-res-status", Fpq_res_status, 1, 1, 0, /* | |
| 1053 Return stringified result status of the query. | |
| 1054 */ | |
| 1055 (result)) | |
| 1056 { | |
| 1057 PGresult *R; | |
| 1058 | |
| 1059 CHECK_PGRESULT (result); | |
| 1060 R = (XPGRESULT (result))->pgresult; | |
| 1061 PUKE_IF_NULL (R); | |
| 1062 | |
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|
1063 return build_extstring (PQresStatus (PQresultStatus (R)), PG_OS_CODING); |
| 996 | 1064 } |
| 1065 | |
| 1066 /* Sundry PGresult accessor functions */ | |
| 1067 DEFUN ("pq-result-error-message", Fpq_result_error_message, 1, 1, 0, /* | |
| 1068 Return last message associated with the query. | |
| 1069 */ | |
| 1070 (result)) | |
| 1071 { | |
| 1072 PGresult *R; | |
| 1073 | |
| 1074 CHECK_PGRESULT (result); | |
| 1075 R = (XPGRESULT (result))->pgresult; | |
| 1076 PUKE_IF_NULL (R); | |
| 1077 | |
|
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1078 return build_extstring (PQresultErrorMessage (R), PG_OS_CODING); |
| 996 | 1079 } |
| 1080 | |
| 1081 DEFUN ("pq-ntuples", Fpq_ntuples, 1, 1, 0, /* | |
| 1082 Return the number of tuples (instances) in the query result. | |
| 1083 */ | |
| 1084 (result)) | |
| 1085 { | |
| 1086 PGresult *R; | |
| 1087 | |
| 1088 CHECK_PGRESULT (result); | |
| 1089 R = (XPGRESULT (result))->pgresult; | |
| 1090 PUKE_IF_NULL (R); | |
| 1091 | |
| 1092 return make_int (PQntuples (R)); | |
| 1093 } | |
| 1094 | |
| 1095 DEFUN ("pq-nfields", Fpq_nfields, 1, 1, 0, /* | |
| 1096 Return the number of fields (attributes) in each tuple of the query result. | |
| 1097 */ | |
| 1098 (result)) | |
| 1099 { | |
| 1100 PGresult *R; | |
| 1101 | |
| 1102 CHECK_PGRESULT (result); | |
| 1103 R = (XPGRESULT (result))->pgresult; | |
| 1104 PUKE_IF_NULL (R); | |
| 1105 | |
| 1106 return make_int (PQnfields (R)); | |
| 1107 } | |
| 1108 | |
| 1109 DEFUN ("pq-binary-tuples", Fpq_binary_tuples, 1, 1, 0, /* | |
| 1110 Return t if the query result contains binary data, nil otherwise. | |
| 1111 */ | |
| 1112 (result)) | |
| 1113 { | |
| 1114 PGresult *R; | |
| 1115 | |
| 1116 CHECK_PGRESULT (result); | |
| 1117 R = (XPGRESULT (result))->pgresult; | |
| 1118 PUKE_IF_NULL (R); | |
| 1119 | |
| 1120 return (PQbinaryTuples (R)) ? Qt : Qnil; | |
| 1121 } | |
| 1122 | |
| 1123 DEFUN ("pq-fname", Fpq_fname, 2, 2, 0, /* | |
| 1124 Return the field (attribute) name associated with the given field index. | |
| 1125 Field indices start at 0. | |
| 1126 */ | |
| 1127 (result, field_index)) | |
| 1128 { | |
| 1129 PGresult *R; | |
| 1130 | |
| 1131 CHECK_PGRESULT (result); | |
| 1132 CHECK_INT (field_index); | |
| 1133 R = (XPGRESULT (result))->pgresult; | |
| 1134 PUKE_IF_NULL (R); | |
| 1135 | |
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1136 return build_extstring (PQfname (R, XINT (field_index)), PG_OS_CODING); |
| 996 | 1137 } |
| 1138 | |
| 1139 DEFUN ("pq-fnumber", Fpq_fnumber, 2, 2, 0, /* | |
| 1140 Return the number of fields (attributes) in each tuple of the query result. | |
| 1141 */ | |
| 1142 (result, field_name)) | |
| 1143 { | |
| 1144 PGresult *R; | |
| 1145 char *c_field_name; | |
| 1146 | |
| 1147 CHECK_PGRESULT (result); | |
| 1148 CHECK_STRING (field_name); | |
| 1149 R = (XPGRESULT (result))->pgresult; | |
| 1150 PUKE_IF_NULL (R); | |
| 1151 | |
| 1152 TO_EXTERNAL_FORMAT (LISP_STRING, field_name, | |
| 1153 C_STRING_ALLOCA, c_field_name, Qnative); | |
| 1154 | |
| 1155 return make_int (PQfnumber (R, c_field_name)); | |
| 1156 } | |
| 1157 | |
| 1158 DEFUN ("pq-ftype", Fpq_ftype, 2, 2, 0, /* | |
| 1159 Return the field type associated with the given field index. | |
| 1160 The integer returned is the internal coding of the type. Field indices | |
| 1161 start at 0. | |
| 1162 */ | |
| 1163 (result, field_num)) | |
| 1164 { | |
| 1165 PGresult *R; | |
| 1166 | |
| 1167 CHECK_PGRESULT (result); | |
| 1168 CHECK_INT (field_num); | |
| 1169 R = (XPGRESULT (result))->pgresult; | |
| 1170 PUKE_IF_NULL (R); | |
| 1171 | |
| 1172 return make_int (PQftype (R, XINT (field_num))); | |
| 1173 } | |
| 1174 | |
| 1175 DEFUN ("pq-fsize", Fpq_fsize, 2, 2, 0, /* | |
| 1176 Return the field size in bytes associated with the given field index. | |
| 1177 Field indices start at 0. | |
| 1178 */ | |
| 1179 (result, field_index)) | |
| 1180 { | |
| 1181 PGresult *R; | |
| 1182 | |
| 1183 CHECK_PGRESULT (result); | |
| 1184 CHECK_INT (field_index); | |
| 1185 R = (XPGRESULT (result))->pgresult; | |
| 1186 PUKE_IF_NULL (R); | |
| 1187 | |
| 1188 return make_int (PQftype (R, XINT (field_index))); | |
| 1189 } | |
| 1190 | |
| 1191 DEFUN ("pq-fmod", Fpq_fmod, 2, 2, 0, /* | |
| 1192 Return the type modifier associated with a field. | |
| 1193 Field indices start at 0. | |
| 1194 */ | |
| 1195 (result, field_index)) | |
| 1196 { | |
| 1197 PGresult *R; | |
| 1198 | |
| 1199 CHECK_PGRESULT (result); | |
| 1200 CHECK_INT (field_index); | |
| 1201 R = (XPGRESULT (result))->pgresult; | |
| 1202 PUKE_IF_NULL (R); | |
| 1203 | |
| 1204 return make_int (PQfmod (R, XINT (field_index))); | |
| 1205 } | |
| 1206 | |
| 1207 DEFUN ("pq-get-value", Fpq_get_value, 3, 3, 0, /* | |
| 1208 Return a single field (attribute) value of one tuple of a PGresult. | |
| 1209 Tuple and field indices start at 0. | |
| 1210 */ | |
| 1211 (result, tup_num, field_num)) | |
| 1212 { | |
| 1213 PGresult *R; | |
| 1214 | |
| 1215 CHECK_PGRESULT (result); | |
| 1216 CHECK_INT (tup_num); | |
| 1217 CHECK_INT (field_num); | |
| 1218 R = (XPGRESULT (result))->pgresult; | |
| 1219 PUKE_IF_NULL (R); | |
| 1220 | |
|
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1221 return build_extstring (PQgetvalue (R, XINT (tup_num), XINT (field_num)), |
| 996 | 1222 PG_OS_CODING); |
| 1223 } | |
| 1224 | |
| 1225 DEFUN ("pq-get-length", Fpq_get_length, 3, 3, 0, /* | |
| 1226 Returns the length of a field value in bytes. | |
| 1227 If result is binary, i.e. a result of a binary portal, then the | |
| 1228 length returned does NOT include the size field of the varlena. (The | |
| 1229 data returned by PQgetvalue doesn't either.) | |
| 1230 */ | |
| 1231 (result, tup_num, field_num)) | |
| 1232 { | |
| 1233 PGresult *R; | |
| 1234 | |
| 1235 CHECK_PGRESULT (result); | |
| 1236 CHECK_INT (tup_num); | |
| 1237 CHECK_INT (field_num); | |
| 1238 R = (XPGRESULT (result))->pgresult; | |
| 1239 PUKE_IF_NULL (R); | |
| 1240 | |
| 1241 return make_int (PQgetlength (R, XINT (tup_num), XINT (field_num))); | |
| 1242 } | |
| 1243 | |
| 1244 DEFUN ("pq-get-is-null", Fpq_get_is_null, 3, 3, 0, /* | |
| 1245 Returns the null status of a field value. | |
| 1246 */ | |
| 1247 (result, tup_num, field_num)) | |
| 1248 { | |
| 1249 PGresult *R; | |
| 1250 | |
| 1251 CHECK_PGRESULT (result); | |
| 1252 CHECK_INT (tup_num); | |
| 1253 CHECK_INT (field_num); | |
| 1254 R = (XPGRESULT (result))->pgresult; | |
| 1255 PUKE_IF_NULL (R); | |
| 1256 | |
| 1257 return PQgetisnull (R, XINT (tup_num), XINT (field_num)) ? Qt : Qnil; | |
| 1258 } | |
| 1259 | |
| 1260 DEFUN ("pq-cmd-status", Fpq_cmd_status, 1, 1, 0, /* | |
| 1261 Returns the command status string from the SQL command that generated the result. | |
| 1262 */ | |
| 1263 (result)) | |
| 1264 { | |
| 1265 PGresult *R; | |
| 1266 | |
| 1267 CHECK_PGRESULT (result); | |
| 1268 R = (XPGRESULT (result))->pgresult; | |
| 1269 PUKE_IF_NULL (R); | |
| 1270 | |
|
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1271 return build_extstring (PQcmdStatus (R), PG_OS_CODING); |
| 996 | 1272 } |
| 1273 | |
| 1274 DEFUN ("pq-cmd-tuples", Fpq_cmd_tuples, 1, 1, 0, /* | |
| 1275 Returns the number of rows affected by the SQL command. | |
| 1276 */ | |
| 1277 (result)) | |
| 1278 { | |
| 1279 PGresult *R; | |
| 1280 | |
| 1281 CHECK_PGRESULT (result); | |
| 1282 R = (XPGRESULT (result))->pgresult; | |
| 1283 PUKE_IF_NULL (R); | |
| 1284 | |
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1285 return build_extstring (PQcmdTuples (R), PG_OS_CODING); |
| 996 | 1286 } |
| 1287 | |
| 1288 DEFUN ("pq-oid-value", Fpq_oid_value, 1, 1, 0, /* | |
| 1289 Returns the object id of the tuple inserted. | |
| 1290 */ | |
| 1291 (result)) | |
| 1292 { | |
| 1293 PGresult *R; | |
| 1294 | |
| 1295 CHECK_PGRESULT (result); | |
| 1296 R = (XPGRESULT (result))->pgresult; | |
| 1297 PUKE_IF_NULL (R); | |
| 1298 | |
| 1299 #ifdef HAVE_POSTGRESQLV7 | |
| 1300 return make_int (PQoidValue (R)); | |
| 1301 #else | |
| 1302 /* Use the old interface */ | |
| 1303 return make_int (atoi (PQoidStatus (R))); | |
| 1304 #endif | |
| 1305 } | |
| 1306 | |
| 1307 #ifdef HAVE_POSTGRESQLV7 | |
| 1308 DEFUN ("pq-set-nonblocking", Fpq_set_nonblocking, 2, 2, 0, /* | |
| 1309 Sets the PGconn's database connection non-blocking if the arg is TRUE | |
| 1310 or makes it non-blocking if the arg is FALSE, this will not protect | |
| 1311 you from PQexec(), you'll only be safe when using the non-blocking API. | |
| 1312 | |
| 1313 Needs to be called only on a connected database connection. | |
| 1314 */ | |
| 1315 (conn, arg)) | |
| 1316 { | |
| 1317 PGconn *P; | |
| 1318 | |
| 1319 CHECK_PGCONN (conn); | |
| 1320 P = (XPGCONN (conn))->pgconn; | |
| 1321 CHECK_LIVE_CONNECTION (P); | |
| 1322 | |
| 1323 return make_int (PQsetnonblocking (P, !NILP (arg))); | |
| 1324 } | |
| 1325 | |
| 1326 DEFUN ("pq-is-nonblocking", Fpq_is_nonblocking, 1, 1, 0, /* | |
| 1327 Return the blocking status of the database connection. | |
| 1328 */ | |
| 1329 (conn)) | |
| 1330 { | |
| 1331 PGconn *P; | |
| 1332 | |
| 1333 CHECK_PGCONN (conn); | |
| 1334 P = (XPGCONN (conn))->pgconn; | |
| 1335 CHECK_LIVE_CONNECTION (P); | |
| 1336 | |
| 1337 return PQisnonblocking (P) ? Qt : Qnil; | |
| 1338 } | |
| 1339 | |
| 1340 DEFUN ("pq-flush", Fpq_flush, 1, 1, 0, /* | |
| 1341 Force the write buffer to be written (or at least try). | |
| 1342 */ | |
| 1343 (conn)) | |
| 1344 { | |
| 1345 PGconn *P; | |
| 1346 | |
| 1347 CHECK_PGCONN (conn); | |
| 1348 P = (XPGCONN (conn))->pgconn; | |
| 1349 CHECK_LIVE_CONNECTION (P); | |
| 1350 | |
| 1351 return make_int (PQflush (P)); | |
| 1352 } | |
| 1353 #endif | |
| 1354 | |
| 1355 DEFUN ("pq-notifies", Fpq_notifies, 1, 1, 0, /* | |
| 1356 Return the latest async notification that has not yet been handled. | |
| 1357 If there has been a notification, then a list of two elements will be returned. | |
| 1358 The first element contains the relation name being notified, the second | |
| 1359 element contains the backend process ID number. nil is returned if there | |
| 1360 aren't any notifications to process. | |
| 1361 */ | |
| 1362 (conn)) | |
| 1363 { | |
| 1364 /* This function cannot GC */ | |
| 1365 PGconn *P; | |
| 1366 PGnotify *PGN; | |
| 1367 | |
| 1368 CHECK_PGCONN (conn); | |
| 1369 P = (XPGCONN (conn))->pgconn; | |
| 1370 CHECK_LIVE_CONNECTION (P); | |
| 1371 | |
| 1372 PGN = PQnotifies (P); | |
| 1373 if (!PGN) | |
| 1374 return Qnil; | |
| 1375 else | |
| 1376 { | |
| 1377 Lisp_Object temp; | |
| 1378 | |
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1379 temp = list2 (build_extstring (PGN->relname, PG_OS_CODING), make_int (PGN->be_pid)); |
| 996 | 1380 free ((void *)PGN); |
| 1381 return temp; | |
| 1382 } | |
| 1383 } | |
| 1384 | |
| 1385 #if defined (HAVE_POSTGRESQLV7) && defined(MULE) | |
| 1386 /* ###autoload */ | |
| 1387 DEFUN ("pq-env-2-encoding", Fpq_env_2_encoding, 0, 0, 0, /* | |
| 1388 Get encoding id from environment variable PGCLIENTENCODING. | |
| 1389 */ | |
| 1390 ()) | |
| 1391 { | |
| 1392 return make_int (PQenv2encoding ()); | |
| 1393 } | |
| 1394 #endif /* MULE */ | |
| 1395 | |
| 1396 DEFUN ("pq-lo-import", Fpq_lo_import, 2, 2, 0, /* | |
| 1397 */ | |
| 1398 (conn, filename)) | |
| 1399 { | |
| 1400 PGconn *P; | |
| 1401 char *c_filename; | |
| 1402 | |
| 1403 CHECK_PGCONN (conn); | |
| 1404 CHECK_STRING (filename); | |
| 1405 | |
| 1406 P = (XPGCONN (conn))->pgconn; | |
| 1407 CHECK_LIVE_CONNECTION (P); | |
| 1408 | |
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1409 LISP_PATHNAME_CONVERT_OUT (filename, c_filename); |
| 996 | 1410 |
| 1411 return make_int ((int)lo_import (P, c_filename)); | |
| 1412 } | |
| 1413 | |
| 1414 DEFUN ("pq-lo-export", Fpq_lo_export, 3, 3, 0, /* | |
| 1415 */ | |
| 1416 (conn, oid, filename)) | |
| 1417 { | |
| 1418 PGconn *P; | |
| 1419 char *c_filename; | |
| 1420 | |
| 1421 CHECK_PGCONN (conn); | |
| 1422 CHECK_INT (oid); | |
| 1423 CHECK_STRING (filename); | |
| 1424 | |
| 1425 P = (XPGCONN (conn))->pgconn; | |
| 1426 CHECK_LIVE_CONNECTION (P); | |
| 1427 | |
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1428 LISP_PATHNAME_CONVERT_OUT (filename, c_filename); |
| 996 | 1429 |
| 1430 return make_int ((int)lo_export (P, XINT (oid), c_filename)); | |
| 1431 } | |
| 1432 | |
| 1433 DEFUN ("pq-make-empty-pgresult", Fpq_make_empty_pgresult, 2, 2, 0, /* | |
| 1434 Make an empty PGresult object with the given status. | |
| 1435 */ | |
| 1436 (conn, status)) | |
| 1437 { | |
| 1438 PGconn *P; | |
| 1439 Lisp_PGresult *lpgr; | |
| 1440 PGresult *R; | |
| 1441 ExecStatusType est; | |
| 1442 | |
| 1443 CHECK_PGCONN (conn); | |
| 1444 P = (XPGCONN (conn))->pgconn; | |
| 1445 CHECK_LIVE_CONNECTION (P); /* needed here? */ | |
| 1446 | |
| 1447 if (EQ (status, Qpgres_empty_query)) est = PGRES_EMPTY_QUERY; | |
| 1448 else if (EQ (status, Qpgres_command_ok)) est = PGRES_COMMAND_OK; | |
| 1449 else if (EQ (status, Qpgres_tuples_ok)) est = PGRES_TUPLES_OK; | |
| 1450 else if (EQ (status, Qpgres_copy_out)) est = PGRES_COPY_OUT; | |
| 1451 else if (EQ (status, Qpgres_copy_in)) est = PGRES_COPY_IN; | |
| 1452 else if (EQ (status, Qpgres_bad_response)) est = PGRES_BAD_RESPONSE; | |
| 1453 else if (EQ (status, Qpgres_nonfatal_error)) est = PGRES_NONFATAL_ERROR; | |
| 1454 else if (EQ (status, Qpgres_fatal_error)) est = PGRES_FATAL_ERROR; | |
| 1455 else invalid_constant ("bad status symbol", status); | |
| 1456 | |
| 1457 R = PQmakeEmptyPGresult (P, est); | |
| 1458 if (!R) out_of_memory (0, Qunbound); | |
| 1459 | |
| 1460 lpgr = allocate_pgresult (); | |
| 1461 lpgr->pgresult = R; | |
| 1462 | |
| 1463 return make_pgresult (lpgr); | |
| 1464 } | |
| 1465 | |
| 1466 DEFUN ("pq-get-line", Fpq_get_line, 1, 1, 0, /* | |
| 1467 Retrieve a line from server in copy in operation. | |
| 1468 The return value is a dotted pair where the cons cell is an integer code: | |
| 1469 -1: Copying is complete | |
| 1470 0: A record is complete | |
| 1471 1: A record is incomplete, it will be continued in the next `pq-get-line' | |
| 1472 operation. | |
| 1473 and the cdr cell is returned string data. | |
| 1474 | |
| 1475 The copy operation is complete when the value `\.' (backslash dot) is | |
| 1476 returned. | |
| 1477 */ | |
| 1478 (conn)) | |
| 1479 { | |
| 1480 char buffer[BLCKSZ]; /* size of a Postgres disk block */ | |
| 1481 PGconn *P; | |
| 1482 int ret; | |
| 1483 | |
| 1484 CHECK_PGCONN (conn); | |
| 1485 P = (XPGCONN (conn))->pgconn; | |
| 1486 CHECK_LIVE_CONNECTION (P); | |
| 1487 | |
| 1488 ret = PQgetline (P, buffer, sizeof (buffer)); | |
| 1489 | |
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1490 return Fcons (make_int (ret), build_extstring (buffer, PG_OS_CODING)); |
| 996 | 1491 } |
| 1492 | |
| 1493 DEFUN ("pq-put-line", Fpq_put_line, 2, 2, 0, /* | |
| 1494 Send a line to the server in copy out operation. | |
| 1495 | |
| 1496 Returns t if the operation succeeded, nil otherwise. | |
| 1497 */ | |
| 1498 (conn, string)) | |
| 1499 { | |
| 1500 PGconn *P; | |
| 1501 char *c_string; | |
| 1502 | |
| 1503 CHECK_PGCONN (conn); | |
| 1504 CHECK_STRING (string); | |
| 1505 | |
| 1506 P = (XPGCONN (conn))->pgconn; | |
| 1507 CHECK_LIVE_CONNECTION (P); | |
| 1508 TO_EXTERNAL_FORMAT (LISP_STRING, string, | |
| 1509 C_STRING_ALLOCA, c_string, Qnative); | |
| 1510 | |
| 1511 return !PQputline (P, c_string) ? Qt : Qnil; | |
| 1512 } | |
| 1513 | |
| 1514 DEFUN ("pq-get-line-async", Fpq_get_line_async, 1, 1, 0, /* | |
| 1515 Get a line from the server in copy in operation asynchronously. | |
| 1516 | |
| 1517 This routine is for applications that want to do "COPY <rel> to stdout" | |
| 1518 asynchronously, that is without blocking. Having issued the COPY command | |
| 1519 and gotten a PGRES_COPY_OUT response, the app should call PQconsumeInput | |
| 1520 and this routine until the end-of-data signal is detected. Unlike | |
| 1521 PQgetline, this routine takes responsibility for detecting end-of-data. | |
| 1522 | |
| 1523 On each call, PQgetlineAsync will return data if a complete newline- | |
| 1524 terminated data line is available in libpq's input buffer, or if the | |
| 1525 incoming data line is too long to fit in the buffer offered by the caller. | |
| 1526 Otherwise, no data is returned until the rest of the line arrives. | |
| 1527 | |
| 1528 If -1 is returned, the end-of-data signal has been recognized (and removed | |
| 1529 from libpq's input buffer). The caller *must* next call PQendcopy and | |
| 1530 then return to normal processing. | |
| 1531 | |
| 1532 RETURNS: | |
| 1533 -1 if the end-of-copy-data marker has been recognized | |
| 1534 0 if no data is available | |
| 1535 >0 the number of bytes returned. | |
| 1536 The data returned will not extend beyond a newline character. If possible | |
| 1537 a whole line will be returned at one time. But if the buffer offered by | |
| 1538 the caller is too small to hold a line sent by the backend, then a partial | |
| 1539 data line will be returned. This can be detected by testing whether the | |
| 1540 last returned byte is '\n' or not. | |
| 1541 The returned string is *not* null-terminated. | |
| 1542 */ | |
| 1543 (conn)) | |
| 1544 { | |
| 1545 PGconn *P; | |
| 1546 char buffer[BLCKSZ]; | |
| 1547 int ret; | |
| 1548 | |
| 1549 CHECK_PGCONN (conn); | |
| 1550 | |
| 1551 P = (XPGCONN (conn))->pgconn; | |
| 1552 CHECK_LIVE_CONNECTION (P); | |
| 1553 | |
| 1554 ret = PQgetlineAsync (P, buffer, sizeof (buffer)); | |
| 1555 | |
| 1556 if (ret == -1) return Qt; /* done! */ | |
| 1557 else if (!ret) return Qnil; /* no data yet */ | |
| 1558 else return Fcons (make_int (ret), | |
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1559 make_extstring ((Extbyte *) buffer, ret, PG_OS_CODING)); |
| 996 | 1560 } |
| 1561 | |
| 1562 DEFUN ("pq-put-nbytes", Fpq_put_nbytes, 2, 2, 0, /* | |
| 1563 Asynchronous copy out. | |
| 1564 */ | |
| 1565 (conn, data)) | |
| 1566 { | |
| 1567 /* NULs are not allowed. I don't think this matters at this time. */ | |
| 1568 PGconn *P; | |
| 1569 char *c_data; | |
| 1570 | |
| 1571 CHECK_PGCONN (conn); | |
| 1572 CHECK_STRING (data); | |
| 1573 | |
| 1574 P = (XPGCONN (conn))->pgconn; | |
| 1575 CHECK_LIVE_CONNECTION (P); | |
| 1576 TO_EXTERNAL_FORMAT (LISP_STRING, data, | |
| 1577 C_STRING_ALLOCA, c_data, Qnative); | |
| 1578 | |
| 1579 return !PQputnbytes (P, c_data, strlen (c_data)) ? Qt : Qnil; | |
| 1580 } | |
| 1581 | |
| 1582 DEFUN ("pq-end-copy", Fpq_end_copy, 1, 1, 0, /* | |
| 1583 End a copying operation. | |
| 1584 */ | |
| 1585 (conn)) | |
| 1586 { | |
| 1587 PGconn *P; | |
| 1588 | |
| 1589 CHECK_PGCONN (conn); | |
| 1590 P = (XPGCONN (conn))->pgconn; | |
| 1591 CHECK_LIVE_CONNECTION (P); | |
| 1592 | |
| 1593 return PQendcopy (P) ? Qt : Qnil; | |
| 1594 } | |
| 1595 | |
| 1596 void | |
| 1597 syms_of_postgresql(void) | |
| 1598 { | |
| 1599 #ifndef RUNNING_XEMACS_21_1 | |
| 1600 INIT_LRECORD_IMPLEMENTATION (pgconn); | |
| 1601 INIT_LRECORD_IMPLEMENTATION (pgresult); | |
| 1602 #endif | |
| 1603 DEFSYMBOL (Qpostgresql); | |
| 1604 | |
| 1605 /* opaque exported types */ | |
| 1606 DEFSYMBOL (Qpgconnp); | |
| 1607 DEFSYMBOL (Qpgresultp); | |
| 1608 | |
| 1609 /* connection status types */ | |
| 1610 defsymbol (&Qpg_connection_ok, "pg::connection-ok"); | |
| 1611 defsymbol (&Qpg_connection_bad, "pg::connection-bad"); | |
| 1612 defsymbol (&Qpg_connection_started, "pg::connection-started"); | |
| 1613 defsymbol (&Qpg_connection_made, "pg::connection-made"); | |
| 1614 defsymbol (&Qpg_connection_awaiting_response, "pg::connection-awaiting-response"); | |
| 1615 defsymbol (&Qpg_connection_auth_ok, "pg::connection-auth-ok"); | |
| 1616 defsymbol (&Qpg_connection_setenv, "pg::connection-setenv"); | |
| 1617 | |
| 1618 /* Fields of PGconn */ | |
| 1619 defsymbol (&Qpqdb, "pq::db"); | |
| 1620 defsymbol (&Qpquser, "pq::user"); | |
| 1621 defsymbol (&Qpqpass, "pq::pass"); | |
| 1622 defsymbol (&Qpqhost, "pq::host"); | |
| 1623 defsymbol (&Qpqport, "pq::port"); | |
| 1624 defsymbol (&Qpqtty, "pq::tty"); | |
| 1625 defsymbol (&Qpqoptions, "pq::options"); | |
| 1626 defsymbol (&Qpqstatus, "pq::status"); | |
| 1627 defsymbol (&Qpqerrormessage, "pq::error-message"); | |
| 1628 defsymbol (&Qpqbackendpid, "pq::backend-pid"); | |
| 1629 | |
| 1630 /* Query status results */ | |
| 1631 defsymbol (&Qpgres_empty_query, "pgres::empty-query"); | |
| 1632 defsymbol (&Qpgres_command_ok, "pgres::command-ok"); | |
| 1633 defsymbol (&Qpgres_tuples_ok, "pgres::tuples-ok"); | |
| 1634 defsymbol (&Qpgres_copy_out, "pgres::copy-out"); | |
| 1635 defsymbol (&Qpgres_copy_in, "pgres::copy-in"); | |
| 1636 defsymbol (&Qpgres_bad_response, "pgres::bad-response"); | |
| 1637 defsymbol (&Qpgres_nonfatal_error, "pgres::nonfatal-error"); | |
| 1638 defsymbol (&Qpgres_fatal_error, "pgres::fatal-error"); | |
| 1639 | |
| 1640 /* Poll status results */ | |
| 1641 defsymbol (&Qpgres_polling_failed, "pgres::polling-failed"); | |
| 1642 defsymbol (&Qpgres_polling_reading, "pgres::polling-reading"); | |
| 1643 defsymbol (&Qpgres_polling_writing, "pgres::polling-writing"); | |
| 1644 defsymbol (&Qpgres_polling_ok, "pgres::polling-ok"); | |
| 1645 defsymbol (&Qpgres_polling_active, "pgres::polling-active"); | |
| 1646 | |
| 1647 #ifdef HAVE_POSTGRESQLV7 | |
| 1648 DEFSUBR (Fpq_connect_start); | |
| 1649 DEFSUBR (Fpq_connect_poll); | |
| 1650 #ifdef MULE | |
| 1651 DEFSUBR (Fpq_client_encoding); | |
| 1652 DEFSUBR (Fpq_set_client_encoding); | |
| 1653 #endif /* MULE */ | |
| 1654 #endif /* HAVE_POSTGRESQLV7 */ | |
| 1655 DEFSUBR (Fpq_conn_defaults); | |
| 1656 DEFSUBR (Fpq_connectdb); | |
| 1657 DEFSUBR (Fpq_finish); | |
| 1658 DEFSUBR (Fpq_clear); | |
| 1659 DEFSUBR (Fpq_is_busy); | |
| 1660 DEFSUBR (Fpq_consume_input); | |
| 1661 | |
| 1662 DEFSUBR (Fpq_reset); | |
| 1663 #ifdef HAVE_POSTGRESQLV7 | |
| 1664 DEFSUBR (Fpq_reset_start); | |
| 1665 DEFSUBR (Fpq_reset_poll); | |
| 1666 #endif | |
| 1667 DEFSUBR (Fpq_request_cancel); | |
| 1668 DEFSUBR (Fpq_pgconn); | |
| 1669 | |
| 1670 DEFSUBR (Fpq_exec); | |
| 1671 DEFSUBR (Fpq_send_query); | |
| 1672 DEFSUBR (Fpq_get_result); | |
| 1673 DEFSUBR (Fpq_result_status); | |
| 1674 DEFSUBR (Fpq_res_status); | |
| 1675 DEFSUBR (Fpq_result_error_message); | |
| 1676 DEFSUBR (Fpq_ntuples); | |
| 1677 DEFSUBR (Fpq_nfields); | |
| 1678 DEFSUBR (Fpq_binary_tuples); | |
| 1679 DEFSUBR (Fpq_fname); | |
| 1680 DEFSUBR (Fpq_fnumber); | |
| 1681 DEFSUBR (Fpq_ftype); | |
| 1682 DEFSUBR (Fpq_fsize); | |
| 1683 DEFSUBR (Fpq_fmod); | |
| 1684 /***/ | |
| 1685 DEFSUBR (Fpq_get_value); | |
| 1686 DEFSUBR (Fpq_get_length); | |
| 1687 DEFSUBR (Fpq_get_is_null); | |
| 1688 DEFSUBR (Fpq_cmd_status); | |
| 1689 DEFSUBR (Fpq_cmd_tuples); | |
| 1690 DEFSUBR (Fpq_oid_value); | |
| 1691 | |
| 1692 #ifdef HAVE_POSTGRESQLV7 | |
| 1693 DEFSUBR (Fpq_set_nonblocking); | |
| 1694 DEFSUBR (Fpq_is_nonblocking); | |
| 1695 DEFSUBR (Fpq_flush); | |
| 1696 #endif | |
| 1697 DEFSUBR (Fpq_notifies); | |
| 1698 | |
| 1699 #if defined (HAVE_POSTGRESQLV7) && defined(MULE) | |
| 1700 DEFSUBR (Fpq_env_2_encoding); | |
| 1701 #endif | |
| 1702 | |
| 1703 DEFSUBR (Fpq_lo_import); | |
| 1704 DEFSUBR (Fpq_lo_export); | |
| 1705 | |
| 1706 DEFSUBR (Fpq_make_empty_pgresult); | |
| 1707 | |
| 1708 /* copy in/out functions */ | |
| 1709 DEFSUBR (Fpq_get_line); | |
| 1710 DEFSUBR (Fpq_put_line); | |
| 1711 DEFSUBR (Fpq_get_line_async); | |
| 1712 DEFSUBR (Fpq_put_nbytes); | |
| 1713 DEFSUBR (Fpq_end_copy); | |
| 1714 } | |
| 1715 | |
| 1716 void | |
| 1717 vars_of_postgresql(void) | |
| 1718 { | |
| 1719 Fprovide (Qpostgresql); | |
| 1720 #ifdef HAVE_POSTGRESQLV7 | |
| 1721 Fprovide (intern ("postgresqlv7")); | |
| 1722 #endif | |
| 1723 #ifndef RUNNING_XEMACS_21_1 | |
| 1724 Vpg_coding_system = Qnative; | |
| 1725 DEFVAR_LISP ("pg-coding-system", &Vpg_coding_system /* | |
| 1726 Default Postgres client coding system. | |
| 1727 */ ); | |
| 1728 #endif | |
| 1729 | |
| 1730 DEFVAR_LISP ("pg:host", &VXPGHOST /* | |
| 1731 Default PostgreSQL server name. | |
| 1732 If not set, the server running on the local host is used. The | |
| 1733 initial value is set from the PGHOST environment variable. | |
| 1734 */ ); | |
| 1735 | |
| 1736 DEFVAR_LISP ("pg:user", &VXPGUSER /* | |
| 1737 Default PostgreSQL user name. | |
| 1738 This value is used when connecting to a database for authentication. | |
| 1739 The initial value is set from the PGUSER environment variable. | |
| 1740 */ ); | |
| 1741 | |
| 1742 DEFVAR_LISP ("pg:options", &VXPGOPTIONS /* | |
| 1743 Default PostgreSQL user name. | |
| 1744 This value is used when connecting to a database for authentication. | |
| 1745 The initial value is set from the PGUSER environment variable. | |
| 1746 */ ); | |
| 1747 | |
| 1748 DEFVAR_LISP ("pg:port", &VXPGPORT /* | |
| 1749 Default port to connect to PostgreSQL backend. | |
| 1750 This value is used when connecting to a database. | |
| 1751 The initial value is set from the PGPORT environment variable. | |
| 1752 */ ); | |
| 1753 | |
| 1754 DEFVAR_LISP ("pg:tty", &VXPGTTY /* | |
| 1755 Default debugging TTY. | |
| 1756 There is no useful setting of this variable in the XEmacs Lisp API. | |
| 1757 The initial value is set from the PGTTY environment variable. | |
| 1758 */ ); | |
| 1759 | |
| 1760 DEFVAR_LISP ("pg:database", &VXPGDATABASE /* | |
| 1761 Default database to connect to. | |
| 1762 The initial value is set from the PGDATABASE environment variable. | |
| 1763 */ ); | |
| 1764 | |
| 1765 DEFVAR_LISP ("pg:realm", &VXPGREALM /* | |
| 1766 Default kerberos realm to use for authentication. | |
| 1767 The initial value is set from the PGREALM environment variable. | |
| 1768 */ ); | |
| 1769 | |
| 1770 #ifdef MULE | |
| 1771 /* It's not clear whether this is any use. My intent is to | |
| 1772 autodetect the coding system from the database. */ | |
| 1773 DEFVAR_LISP ("pg:client-encoding", &VXPGCLIENTENCODING /* | |
| 1774 Default client encoding to use. | |
| 1775 The initial value is set from the PGCLIENTENCODING environment variable. | |
| 1776 */ ); | |
| 1777 #endif | |
| 1778 | |
| 1779 #if !defined(HAVE_POSTGRESQLV7) | |
| 1780 DEFVAR_LISP ("pg:authtype", &VXPGAUTHTYPE /* | |
| 1781 Default authentication to use. | |
| 1782 The initial value is set from the PGAUTHTYPE environment variable. | |
| 1783 | |
| 1784 WARNING: This variable has gone away in versions of PostgreSQL newer | |
| 1785 than 6.5. | |
| 1786 */ ); | |
| 1787 #endif | |
| 1788 | |
| 1789 DEFVAR_LISP ("pg:geqo", &VXPGGEQO /* | |
| 1790 Genetic Query Optimizer options. | |
| 1791 The initial value is set from the PGGEQO environment variable. | |
| 1792 */ ); | |
| 1793 | |
| 1794 DEFVAR_LISP ("pg:cost-index", &VXPGCOSTINDEX /* | |
| 1795 Default cost index options. | |
| 1796 The initial value is set from the PGCOSTINDEX environment variable. | |
| 1797 */ ); | |
| 1798 | |
| 1799 DEFVAR_LISP ("pg:cost-heap", &VXPGCOSTHEAP /* | |
| 1800 Default cost heap options. | |
| 1801 The initial value is set from the PGCOSTHEAP environment variable. | |
| 1802 */ ); | |
| 1803 | |
| 1804 DEFVAR_LISP ("pg:tz", &VXPGTZ /* | |
| 1805 Default timezone to use. | |
| 1806 The initial value is set from the PGTZ environment variable. | |
| 1807 */ ); | |
| 1808 | |
| 1809 DEFVAR_LISP ("pg:date-style", &VXPGDATESTYLE /* | |
| 1810 Default date style to use. | |
| 1811 The initial value is set from the PGDATESTYLE environment variable. | |
| 1812 */ ); | |
| 1813 | |
| 1814 #ifdef HAVE_SHLIB | |
| 1815 /* If we are building this as a module, we need the initializing function to | |
| 1816 run at module load time. */ | |
| 1817 init_postgresql_from_environment (); | |
| 1818 #endif | |
| 1819 } | |
| 1820 | |
| 1821 /* These initializations should not be done at dump-time. */ | |
| 1822 void | |
| 1823 init_postgresql_from_environment (void) | |
| 1824 { | |
| 1825 Ibyte *p; | |
| 1826 | |
| 1827 #define FROB(envvar, var) \ | |
| 1828 if ((p = egetenv (envvar))) \ | |
|
4953
304aebb79cd3
function renamings to track names of char typedefs
Ben Wing <ben@xemacs.org>
parents:
4952
diff
changeset
|
1829 var = build_istring (p); \ |
| 996 | 1830 else \ |
| 1831 var = Qnil | |
| 1832 | |
| 1833 if (initialized) | |
| 1834 { | |
| 1835 FROB ("PGHOST", VXPGHOST); | |
| 1836 FROB ("PGUSER", VXPGUSER); | |
| 1837 FROB ("PGOPTIONS", VXPGOPTIONS); | |
| 1838 | |
| 1839 if ((p = egetenv ("PGPORT"))) | |
| 1840 VXPGPORT = make_int (atoi ((char *) p)); | |
| 1841 else | |
| 1842 VXPGPORT = Qnil; | |
| 1843 | |
| 1844 FROB ("PGTTY", VXPGTTY); | |
| 1845 FROB ("PGDATABASE", VXPGDATABASE); | |
| 1846 FROB ("PGREALM", VXPGREALM); | |
| 1847 #ifdef MULE | |
| 1848 /* It's not clear whether this is any use. My intent is to | |
| 1849 autodetect the coding system from the database. */ | |
| 1850 FROB ("PGCLIENTENCODING", VXPGCLIENTENCODING); | |
| 1851 #endif | |
| 1852 | |
| 1853 #if !defined(HAVE_POSTGRESQLV7) | |
| 1854 FROB ("PGAUTHTYPE", VXPGAUTHTYPE); | |
| 1855 #endif | |
| 1856 | |
| 1857 FROB ("PGGEQO", VXPGGEQO); | |
| 1858 FROB ("PGCOSTINDEX", VXPGCOSTINDEX); | |
| 1859 FROB ("PGCOSTHEAP", VXPGCOSTHEAP); | |
| 1860 FROB ("PGTZ", VXPGTZ); | |
| 1861 FROB ("PGDATESTYLE", VXPGDATESTYLE); | |
| 1862 #undef FROB | |
| 1863 } | |
| 1864 } | |
| 1865 | |
| 1866 #ifdef HAVE_SHLIB | |
| 1706 | 1867 EXTERN_C void unload_postgresql (void); |
| 996 | 1868 void |
| 1869 unload_postgresql (void) | |
| 1870 { | |
| 1871 #ifndef RUNNING_XEMACS_21_1 | |
| 1872 /* Remove defined types */ | |
| 1873 UNDEF_LRECORD_IMPLEMENTATION (pgconn); | |
| 1874 UNDEF_LRECORD_IMPLEMENTATION (pgresult); | |
| 1875 #endif | |
| 1876 | |
| 1877 /* Remove staticpro'ing of symbols */ | |
| 1878 unstaticpro_nodump (&Qpostgresql); | |
| 1879 unstaticpro_nodump (&Qpgconnp); | |
| 1880 unstaticpro_nodump (&Qpgresultp); | |
| 1881 unstaticpro_nodump (&Qpg_connection_ok); | |
| 1882 unstaticpro_nodump (&Qpg_connection_bad); | |
| 1883 unstaticpro_nodump (&Qpg_connection_started); | |
| 1884 unstaticpro_nodump (&Qpg_connection_made); | |
| 1885 unstaticpro_nodump (&Qpg_connection_awaiting_response); | |
| 1886 unstaticpro_nodump (&Qpg_connection_auth_ok); | |
| 1887 unstaticpro_nodump (&Qpg_connection_setenv); | |
| 1888 unstaticpro_nodump (&Qpqdb); | |
| 1889 unstaticpro_nodump (&Qpquser); | |
| 1890 unstaticpro_nodump (&Qpqpass); | |
| 1891 unstaticpro_nodump (&Qpqhost); | |
| 1892 unstaticpro_nodump (&Qpqport); | |
| 1893 unstaticpro_nodump (&Qpqtty); | |
| 1894 unstaticpro_nodump (&Qpqoptions); | |
| 1895 unstaticpro_nodump (&Qpqstatus); | |
| 1896 unstaticpro_nodump (&Qpqerrormessage); | |
| 1897 unstaticpro_nodump (&Qpqbackendpid); | |
| 1898 unstaticpro_nodump (&Qpgres_empty_query); | |
| 1899 unstaticpro_nodump (&Qpgres_command_ok); | |
| 1900 unstaticpro_nodump (&Qpgres_tuples_ok); | |
| 1901 unstaticpro_nodump (&Qpgres_copy_out); | |
| 1902 unstaticpro_nodump (&Qpgres_copy_in); | |
| 1903 unstaticpro_nodump (&Qpgres_bad_response); | |
| 1904 unstaticpro_nodump (&Qpgres_nonfatal_error); | |
| 1905 unstaticpro_nodump (&Qpgres_fatal_error); | |
| 1906 unstaticpro_nodump (&Qpgres_polling_failed); | |
| 1907 unstaticpro_nodump (&Qpgres_polling_reading); | |
| 1908 unstaticpro_nodump (&Qpgres_polling_writing); | |
| 1909 unstaticpro_nodump (&Qpgres_polling_ok); | |
| 1910 unstaticpro_nodump (&Qpgres_polling_active); | |
| 1911 } | |
| 1912 #endif /* HAVE_SHLIB */ |