comparison src/sysdep.c @ 502:7039e6323819

[xemacs-hg @ 2001-05-04 22:41:46 by ben] ----------------------- byte-comp warning fixes ----------------- New functions for cleanly eliminating byte-compiler warnings. Their definitions require no changes at all in bytecomp.el, meaning that any package that wants to use them and be compatible with older versions of XEmacs need only copy the code and rename the functions (i.e. prefix them with the package name). Eliminate byte-compiler warnings using the new functions in bytecomp-runtime.el. Move coding-system-put,get,category, since they're not Mule-specific and are used in prefer-coding-system. font.el was incredibly ugly. Clean it up. Avoid using defsubst for any exported functions, to avoid possible compatibility problems if we later change the internal interface. (It happened before, with face accessors, between 19.8 and 19.9). Fix tons of warnings. Clean up (new function gpm-is-supported-p eliminates duplicate code in gpm-create/delete-device-hook) and eliminate warnings. ---------- make byte-recompile-directory work in the --------- core `lisp' dir, even in the absence of a Mule XEmacs (i.e. make it skip the Mule files rather than trying to compile them). now you should be able to do `touch *.el' in the `lisp' dir, then M-x byte-recompile-directory, and get no warnings. Avoid trying to compile Mule files in byte-recompile-directory when we're not in a Mule XEmacs, since we're highly likely to get syntax errors. Add a coding-system cookie to all Mule files so that byte-recompile-directory ignores them. Magic cookie function moved to files.el from code-files.el (for use by bytecomp even in a non-coding-system XEmacs), and changed names and semantics for use by bytecomp. NOTE: IMO this is an internal function that we can change as we like (and there is absolutely no code anywhere else using the function). ---------------- GUI improvements: menus, help ------------------- Rearrange order of keymap declarations to be alphabetical. Improve help on help to include all bindings, and group by category. Add bindings for new Info commands. Remove warnings. Use command-hyper-apropos in place of command-apropos. Add a function to do the equivalent of command-apropos. Evals its help-text argument so you can put expressions there. Used now by help-for-help. Add binding to continue text searches. Expand index searches to work over multiple info documents. Add commands to search text/index in User and Lispref. Add new entry, "Uncomment Region" (parallels "Comment Out Region"). Redo Help menu; add bindings for new Info commands to search the index or text of the User and Lispref manuals. Add command for mark-paragraph, activate-region. Make Edit->R accelerator be rectangle, not register (more commonly used), and put rectangle first. Fix the Edit Init File entry to never load the .elc file. Simplify the default-popup-menu. Add Cmds->Tabs menu. Use kp-left not kp_left, etc. ---------------- Miscellaneous bug fixes/cleanup ------------------- byte-compiler-options: Correct doc string. easy-menu-do-define: fix extra quote. fill-paragraph-or-region:Rewrite to be more correct -- use call-interactively so that we always get exactly the same behavior as if the functions were called directly. No need to fiddle with zmacs-region-stays, now that bogus clearing of it (2001-04-28 src/ChangeLog) is removed. Put dialog titles back in -- this time correctly. Fix various other problems with leaks and such. key-sequence-list-description: Clean up fun to always correctly canonicalize. Clean up Kinsoku comments, synch comment-region with FSF 20.7. * simple.el (region-exists-p): * simple.el (region-active-p): Add comment about which one is correct to use in menu specs. * sound.el (load-sound-file): Minor code clean up. * startup.el: * startup.el (command-line-early): * startup.el (initial-scratch-message): Comment changes. Add info about sample.init.el to splash screen. Improve initial-scratch-message and clarify purpose of Scratch buffer. Fix byte-compile warning. ------------------------ Added features ------------------------- Add new variable to control whether etags checks all parent directories for tag files. (On by default.) * hash-table.el: New file, useful utility functions. * dumped-lisp.el (preloaded-file-list): Dump hash-table.el. ------------ notable bug fix: Windows event code -------------- Get critical quit working. ------------ notable bug fix and new feature: regex code -------------- Shy groups were implemented in a horrible, half-assed way that would cause them to screw up regex searching in most cases. Fixed to work correctly. Also extended back-reference syntax past 9. Only is recognized as such if there are at least that many non-shy groups; and optionally will warn about such uses, to catch old code that might be using them differently. (Added variable to control this in search.c -- `warn-about-possibly-incompatible-back- references', on by default for the moment. Declared in lisp.h. ---------------- process/SIGIO improvements ------------------- define USE_GETADDRINFO to replace more complex conditional, and use it. the code conditionalized on this in unix_open_network_stream had *serious* problems handling errors. it's now fixed, and major amounts of duplicate code between the two versions were combined. don't disable SIGIO and other interrupts unless CONNECT_NEEDS_SLOWED_INTERRUPTS is defined -- don't penalize OS's without bugs. similarly for a freebsd bug that was affecting all OS's. * s\ultrix.h: define CONNECT_NEEDS_SLOWED_INTERRUPTS, since that's the OS mentioned as having a kernel bug. * sysdep.c (request_sigio_on_device): * sysdep.c (unrequest_sigio_on_device): fix SIGIO problems on Linux. add check for O_ASYNC in case it's defined and FASYNC isn't. add comment about other ways to do SIGIO on Linux. * callproc.c (Fold_call_process_internal): * process.c (Fstart_process_internal): Deal with the possibility that `default-directory' doesn't have terminating slash. Correct comments about vfork. ---------------- Miscellaneous bug fixes/cleanup ------------------- * callint.c (Finteractive): Add lots of documentation -- exactly what the Lisp equivalents of all the interactive specs are. * console.h (struct console): change type of quit_char to Emchar. * event-msw.c (lstream_type_create_mswindows_selectable): spacing change. Eliminate events-mod.h and combine into events.h. * emacs.c: * emacs.c (make_arg_list_1): * emacs.c (main_1): A couple of char->Extbyte changes, add a comment. * glyphs-msw.c: Correct indentation of function defns to not exceed 80 cols. Try (sort of) to fix some code that sets the colors of the progress gauge. (Commented out) * keymap.c (syms_of_keymap): use DEFSYMBOL. * process.c (read_process_output): No need to fiddle with zmacs_region_stays, now that bogus clearing of it (see below) is removed. * search.c (Freplace_match): warning fix.
author ben
date Fri, 04 May 2001 22:42:35 +0000
parents 0784d089fdc9
children e159a0b4bed4
comparison
equal deleted inserted replaced
501:0a255b32b157 502:7039e6323819
1061 static void 1061 static void
1062 request_sigio_on_device (struct device *d) 1062 request_sigio_on_device (struct device *d)
1063 { 1063 {
1064 int filedesc = DEVICE_INFD (d); 1064 int filedesc = DEVICE_INFD (d);
1065 1065
1066 #if defined (I_SETSIG) && !defined(HPUX10) && !defined(LINUX) 1066 /* NOTE: It appears that Linux has its own mechanism for requesting
1067 SIGIO, using the F_GETSIG and F_SETSIG commands to fcntl().
1068 These let you pick which signal you want sent (not just SIGIO),
1069 and if you do this, you get additional info which tells you which
1070 file descriptor has input ready on it. The man page says:
1071
1072 Using these mechanisms, a program can implement fully
1073 asynchronous I/O without using select(2) or poll(2) most
1074 of the time.
1075
1076 The use of O_ASYNC, F_GETOWN, F_SETOWN is specific to BSD
1077 and Linux. F_GETSIG and F_SETSIG are Linux-specific.
1078 POSIX has asynchronous I/O and the aio_sigevent structure
1079 to achieve similar things; these are also available in
1080 Linux as part of the GNU C Library (Glibc).
1081
1082 But it appears that Linux also supports O_ASYNC, so I see no
1083 particular need to switch. --ben
1084 */
1085
1086 #if defined (I_SETSIG) && !defined (HPUX10) && !defined (LINUX)
1067 { 1087 {
1068 int events=0; 1088 int events = 0;
1069 ioctl (filedesc, I_GETSIG, &events); 1089 ioctl (filedesc, I_GETSIG, &events);
1070 ioctl (filedesc, I_SETSIG, events | S_INPUT); 1090 ioctl (filedesc, I_SETSIG, events | S_INPUT);
1071 } 1091 }
1092 #elif defined (O_ASYNC)
1093 /* Generally FASYNC and O_ASYNC are both defined, and both equal;
1094 but let's not depend on that. O_ASYNC appears to be more
1095 standard (at least the Linux include files think so), so
1096 check it first. */
1097 fcntl (filedesc, F_SETFL, fcntl (filedesc, F_GETFL, 0) | O_ASYNC);
1072 #elif defined (FASYNC) 1098 #elif defined (FASYNC)
1073 fcntl (filedesc, F_SETFL, fcntl (filedesc, F_GETFL, 0) | FASYNC); 1099 fcntl (filedesc, F_SETFL, fcntl (filedesc, F_GETFL, 0) | FASYNC);
1074 #elif defined (FIOSSAIOSTAT) 1100 #elif defined (FIOSSAIOSTAT)
1075 { 1101 {
1076 /* DG: Changed for HP-UX. HP-UX uses different IOCTLs for 1102 /* DG: Changed for HP-UX. HP-UX uses different IOCTLs for
1106 static void 1132 static void
1107 unrequest_sigio_on_device (struct device *d) 1133 unrequest_sigio_on_device (struct device *d)
1108 { 1134 {
1109 int filedesc = DEVICE_INFD (d); 1135 int filedesc = DEVICE_INFD (d);
1110 1136
1111 #if defined (I_SETSIG) && !defined(HPUX10) 1137 #if defined (I_SETSIG) && !defined (HPUX10) && !defined (LINUX)
1112 { 1138 {
1113 int events=0; 1139 int events = 0;
1114 ioctl (filedesc, I_GETSIG, &events); 1140 ioctl (filedesc, I_GETSIG, &events);
1115 ioctl (filedesc, I_SETSIG, events & ~S_INPUT); 1141 ioctl (filedesc, I_SETSIG, events & ~S_INPUT);
1116 } 1142 }
1143 #elif defined (O_ASYNC)
1144 fcntl (filedesc, F_SETFL, fcntl (filedesc, F_GETFL, 0) & ~O_ASYNC);
1117 #elif defined (FASYNC) 1145 #elif defined (FASYNC)
1118 fcntl (filedesc, F_SETFL, fcntl (filedesc, F_GETFL, 0) & ~FASYNC); 1146 fcntl (filedesc, F_SETFL, fcntl (filedesc, F_GETFL, 0) & ~FASYNC);
1119 #elif defined (FIOSSAIOSTAT) 1147 #elif defined (FIOSSAIOSTAT)
1120 { 1148 {
1121 /* DG: Changed for HP-UX. HP-UX uses different IOCTLs for 1149 /* DG: Changed for HP-UX. HP-UX uses different IOCTLs for