From 6d52618b15cbe25ed4822ac51321db292f28ccda Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Fri, 20 Dec 1996 01:39:50 +0000 Subject: Update from main archive 961219 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Thu Dec 19 23:28:33 1996 Ulrich Drepper * resolv/resolv.h: Update from BIND 4.9.5-P1. * resolv/res_comp.c: Likewise. * resolv/res_debug.c: Likewise. * resolv/Banner: Update version number. Thu Dec 19 20:58:53 1996 Ulrich Drepper * elf/dlfcn.h: Add extern "C" wrapper. * io/utime.h: Don't define NULL since this isn't allowed in POSIX. * io/sys/stat.h: Declare `lstat' only if __USE_BSD || __USE_XOPEN_EXTENDED. * locale/locale.h: Define NULL. * math/math.c: Don't include to define math errors. * stdlib/stdlib.h: Likewise. * posix/unistd.h: Don't declare environ. * posix/sys/utsname.h (struct utsname): Declare member domainname as __domainname is !__USE_GNU. * signal/signal.h: Declare size_t only if __USE_BSD || __USE_XOPEN_EXTENDED. * stdio/stdio.h: Don't declare cuserid when __USE_POSIX, but instead when __USE_XOPEN. * string/string.h: Define strndup only if __USE_GNU. * sysdeps/unix/sysv/linux/clock.c: New file. * sysdeps/unix/sysv/linux/timebits.h: Define CLOCKS_PER_SEC as 1000000 per X/Open standard. * features.h: Add code to recognize _POSIX_C_SOURCE value 199309. Define __USE_POSIX199309. * posix/unistd.h: Declare fdatasync only if __USE_POSIX199309. * time/time.c: Declare nanosleep only if __USE_POSIX199309. Patches by Rüdiger Helsch . * locale/locale.h: Add declaration of newlocale and freelocale. * new-malloc/Makefile (distibute): Add mtrace.awk. (dist-routines): Add mcheck and mtrace. (install-lib, non-lib.a): Define as libmcheck.a. * new-malloc/malloc.h: Add declaration of __malloc_initialized. * new-malloc/mcheck.c: New file. * new-malloc/mcheck.h: New file. * new-malloc/mtrace.c: New file. * new-malloc/mtrace.awk: New file. * posix/unistd.h: Correct prototype for usleep. * sysdeps/unix/bsd/usleep.c: De-ANSI-declfy. Correct return type. * sysdeps/unix/sysv/linux/usleep.c: Real implementation based on nanosleep. * signal/signal.h: Change protoype of __sigpause to take two arguments. Remove prototype for sigpause. Add two different macros named sigpause selected when __USE_BSD or __USE_XOPEN are defined. This is necessary since the old BSD definition of theis function collides with the X/Open definition. * sysdeps/posix/sigpause.c: Change function definition to also fit X/Open definition. * sysdeps/libm-i387/e_exp.S: Make sure stack is empty when the function is left. * sysdeps/libm-i387/e_expl.S: Likewise. Patch by HJ Lu. 1996-12-17 Paul Eggert * many, many files: Spelling corrections. * catgets/catgetsinfo.h (mmapped): Renamed from mmaped (in struct catalog_info.status). * mach/err_kern.sub (err_codes_unix), string/stratcliff.c (main): Fix spelling in message. * po/libc.pot: Fix spelling in message for `zic'; this anticipates a fix in the tzcode distribution. Wed Dec 18 15:48:02 1996 Ulrich Drepper * time/strftime.c: Implement ^ flag to cause output be converted to use upper case characters. * time/zic.c: Update from ADO tzcode1996n. Wed Dec 18 14:29:24 1996 Erik Naggum * time/strftime.c (add): Don't change global `i' until all is over. Define NULL is not already defined. Tue Dec 17 09:49:03 1996 Andreas Schwab * libio/iovsprintf.c (_IO_vsprintf): Change `&sf' to `&sf._sbf._f' to avoid the need for a cast. * libio/iovsscanf.c (_IO_vsscanf): Likewise. * sunrpc/rpc/xdr.h: Add prototype for xdr_free. --- manual/job.texi | 50 +++++++++++++++++++++++++------------------------- 1 file changed, 25 insertions(+), 25 deletions(-) (limited to 'manual/job.texi') diff --git a/manual/job.texi b/manual/job.texi index 1ac15fffc4..f97aceb61c 100644 --- a/manual/job.texi +++ b/manual/job.texi @@ -54,7 +54,7 @@ terminate all the processes in the foreground process group. @cindex session A @dfn{session} is a larger group of processes. Normally all the -proccesses that stem from a single login belong to the same session. +processes that stem from a single login belong to the same session. Every process belongs to a process group. When a process is created, it becomes a member of the same process group and session as its parent @@ -154,7 +154,7 @@ calls @code{setsid} to become the leader of a new session. @cindex controlling terminal, access to Processes in the foreground job of a controlling terminal have -unrestricted access to that terminal; background proesses do not. This +unrestricted access to that terminal; background processes do not. This section describes in more detail what happens when a process in a background job tries to access its controlling terminal. @@ -213,7 +213,7 @@ involved. @iftex @itemize @bullet -@item +@item @ref{Data Structures}, introduces the example and presents its primary data structures. @@ -310,7 +310,7 @@ job * find_job (pid_t pgid) @{ job *j; - + for (j = first_job; j; j = j->next) if (j->pgid == pgid) return j; @@ -324,7 +324,7 @@ int job_is_stopped (job *j) @{ process *p; - + for (p = j->first_process; p; p = p->next) if (!p->completed && !p->stopped) return 0; @@ -338,7 +338,7 @@ int job_is_completed (job *j) @{ process *p; - + for (p = j->first_process; p; p = p->next) if (!p->completed) return 0; @@ -355,7 +355,7 @@ job_is_completed (job *j) When a shell program that normally performs job control is started, it has to be careful in case it has been invoked from another shell that is -already doing its own job control. +already doing its own job control. A subshell that runs interactively has to ensure that it has been placed in the foreground by its parent shell before it can enable job control @@ -413,7 +413,7 @@ int shell_is_interactive; void init_shell () @{ - + /* @r{See if we are running interactively.} */ shell_terminal = STDIN_FILENO; shell_is_interactive = isatty (shell_terminal); @@ -512,7 +512,7 @@ send a @code{SIGTSTP} signal to the process group of the process, not just to the process itself. @xref{Signaling Another Process}. Finally, each child process should call @code{exec} in the normal way. -This is also the point at which redirection of the standard input and +This is also the point at which redirection of the standard input and output channels should be handled. @xref{Duplicating Descriptors}, for an explanation of how to do this. @@ -564,9 +564,9 @@ launch_process (process *p, pid_t pgid, @{ dup2 (errfile, STDERR_FILENO); close (errfile); - @} - - /* @r{Exec the new process. Make sure we exit.} */ + @} + + /* @r{Exec the new process. Make sure we exit.} */ execvp (p->argv[0], p->argv); perror ("execvp"); exit (1); @@ -590,7 +590,7 @@ launch_job (job *j, int foreground) process *p; pid_t pid; int mypipe[2], infile, outfile; - + infile = j->stdin; for (p = j->first_process; p; p = p->next) @{ @@ -638,7 +638,7 @@ launch_job (job *j, int foreground) close (outfile); infile = mypipe[0]; @} - + format_job_info (j, "launched"); if (!shell_is_interactive) @@ -704,13 +704,13 @@ put_job_in_foreground (job *j, int cont) perror ("kill (SIGCONT)"); @} @end group - + /* @r{Wait for it to report.} */ wait_for_job (j); - + /* @r{Put the shell back in the foreground.} */ tcsetpgrp (shell_terminal, shell_pgid); - + @group /* @r{Restore the shell's terminal modes.} */ tcgetattr (shell_terminal, &j->tmodes); @@ -722,7 +722,7 @@ put_job_in_foreground (job *j, int cont) @cindex background job, launching If the process group is launched as a background job, the shell should remain in the foreground itself and continue to read commands from -the terminal. +the terminal. In the sample shell, there is not much that needs to be done to put a job into the background. Here is the function it uses: @@ -833,7 +833,7 @@ update_status (void) @{ int status; pid_t pid; - + do pid = waitpid (WAIT_ANY, &status, WUNTRACED|WNOHANG); while (!mark_process_status (pid, status)); @@ -849,11 +849,11 @@ wait_for_job (job *j) @{ int status; pid_t pid; - + do pid = waitpid (WAIT_ANY, &status, WUNTRACED); - while (!mark_process_status (pid, status) - && !job_is_stopped (j) + while (!mark_process_status (pid, status) + && !job_is_stopped (j) && !job_is_completed (j)); @} @end group @@ -880,7 +880,7 @@ do_job_notification (void) /* @r{Update status information for child processes.} */ update_status (); - + jlast = NULL; for (j = first_job; j; j = jnext) @{ @@ -976,7 +976,7 @@ allocated and initialized. Most real shells provide a complex user interface that has support for a command language; variables; abbreviations, substitutions, and pattern matching on file names; and the like. All of this is far too complicated -to explain here! Instead, we have concentrated on showing how to +to explain here! Instead, we have concentrated on showing how to implement the core process creation and job control functions that can be called from such a shell. @@ -1058,7 +1058,7 @@ represents the size of a string large enough to hold the file name returned by @code{ctermid}. @end deftypevr -See also the @code{isatty} and @code{ttyname} functions, in +See also the @code{isatty} and @code{ttyname} functions, in @ref{Is It a Terminal}. -- cgit v1.2.3