Mercurial > hg > xemacs-beta

comparison src/process.c @ 410:de805c49cfc1 r21-2-35

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Import from CVS: tag r21-2-35
author cvs
date Mon, 13 Aug 2007 11:19:21 +0200
parents 501cfd01ee6d
children 697ef44129c6
comparison
equal deleted inserted replaced
409:301b9ebbdf3b 410:de805c49cfc1
105 105
106 /* List of process objects. */ 106 /* List of process objects. */
107 Lisp_Object Vprocess_list; 107 Lisp_Object Vprocess_list;
108 108
109 extern Lisp_Object Vlisp_EXEC_SUFFIXES; 109 extern Lisp_Object Vlisp_EXEC_SUFFIXES;
110 Lisp_Object Vnull_device;
110 111
111 112
112 113
113 static Lisp_Object 114 static Lisp_Object
114 mark_process (Lisp_Object obj) 115 mark_process (Lisp_Object obj)
2073 nil means don't delete them until `list-processes' is run. 2074 nil means don't delete them until `list-processes' is run.
2074 */ ); 2075 */ );
2075 2076
2076 delete_exited_processes = 1; 2077 delete_exited_processes = 1;
2077 2078
2079 DEFVAR_CONST_LISP ("null-device", &Vnull_device /*
2080 Name of the null device, which differs from system to system.
2081 The null device is a filename that acts as a sink for arbitrary amounts of
2082 data, which is discarded, or as a source for a zero-length file.
2083 It is available on all the systems that we currently support, but with
2084 different names (typically either `/dev/null' or `nul').
2085
2086 Note that there is also a /dev/zero on most modern Unix versions (including
2087 Cygwin), which acts like /dev/null when used as a sink, but as a source
2088 it sends a non-ending stream of zero bytes. It's used most often along
2089 with memory-mapping. We don't provide a Lisp variable for this because
2090 the operations needing this are lower level than what ELisp programs
2091 typically do, and in any case no equivalent exists under native MS Windows.
2092 */ );
2093 Vnull_device = build_string (NULL_DEVICE);
2094
2078 DEFVAR_LISP ("process-connection-type", &Vprocess_connection_type /* 2095 DEFVAR_LISP ("process-connection-type", &Vprocess_connection_type /*
2079 Control type of device used to communicate with subprocesses. 2096 Control type of device used to communicate with subprocesses.
2080 Values are nil to use a pipe, or t or `pty' to use a pty. 2097 Values are nil to use a pipe, or t or `pty' to use a pty.
2081 The value has no effect if the system has no ptys or if all ptys are busy: 2098 The value has no effect if the system has no ptys or if all ptys are busy:
2082 then a pipe is used in any case. 2099 then a pipe is used in any case.