diff options
| -rw-r--r-- | ChangeLog | 4 | ||||
| -rw-r--r-- | manual/job.texi | 25 |
2 files changed, 29 insertions, 0 deletions
@@ -1,5 +1,9 @@ 2014-01-31 Alexandre Oliva <aoliva@redhat.com> + * manual/job.texi: Document MTASC-safety properties. + +2014-01-31 Alexandre Oliva <aoliva@redhat.com> + * manual/getopt.texi: Document MTASC-safety properties. 2014-01-31 Alexandre Oliva <aoliva@redhat.com> diff --git a/manual/job.texi b/manual/job.texi index d58dcd8..4e58f54 100644 --- a/manual/job.texi +++ b/manual/job.texi @@ -1039,6 +1039,10 @@ The function @code{ctermid} is declared in the header file @comment stdio.h @comment POSIX.1 @deftypefun {char *} ctermid (char *@var{string}) +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} +@c This function is a stub by default; the actual implementation, for +@c posix systems, returns an internal buffer if passed a NULL string, +@c but the internal buffer is always set to /dev/tty. The @code{ctermid} function returns a string containing the file name of the controlling terminal for the current process. If @var{string} is not a null pointer, it should be an array that can hold at least @@ -1075,6 +1079,12 @@ Your program should include the header files @file{sys/types.h} and @comment unistd.h @comment POSIX.1 @deftypefun pid_t setsid (void) +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} +@c This is usually a direct syscall, but if a syscall is not available, +@c we use a stub, or Hurd- and BSD-specific implementations. The former +@c uses a mutex and a hurd critical section, and the latter issues a few +@c syscalls, so both seem safe, the locking on Hurd is safe because of +@c the critical section. The @code{setsid} function creates a new session. The calling process becomes the session leader, and is put in a new process group whose process group ID is the same as the process ID of that process. There @@ -1098,6 +1108,8 @@ already another process group around that has the same process group ID. @comment unistd.h @comment SVID @deftypefun pid_t getsid (pid_t @var{pid}) +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} +@c Stub or direct syscall, except on hurd, where it is equally safe. The @code{getsid} function returns the process group ID of the session leader of the specified process. If a @var{pid} is @code{0}, the @@ -1121,6 +1133,7 @@ from the calling process. @comment unistd.h @comment POSIX.1 @deftypefun pid_t getpgrp (void) +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} The @code{getpgrp} function returns the process group ID of the calling process. @end deftypefun @@ -1128,6 +1141,8 @@ the calling process. @comment unistd.h @comment POSIX.1 @deftypefun int getpgid (pid_t @var{pid}) +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} +@c Stub or direct syscall, except on hurd, where it is equally safe. The @code{getpgid} function returns the process group ID of the process @var{pid}. You can supply a @@ -1150,6 +1165,8 @@ process. @comment unistd.h @comment POSIX.1 @deftypefun int setpgid (pid_t @var{pid}, pid_t @var{pgid}) +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} +@c Stub or direct syscall, except on hurd, where it is equally safe. The @code{setpgid} function puts the process @var{pid} into the process group @var{pgid}. As a special case, either @var{pid} or @var{pgid} can be zero to indicate the process ID of the calling process. @@ -1187,6 +1204,8 @@ process or a child of the calling process. @comment unistd.h @comment BSD @deftypefun int setpgrp (pid_t @var{pid}, pid_t @var{pgid}) +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} +@c Direct syscall or setpgid wrapper. This is the BSD Unix name for @code{setpgid}. Both functions do exactly the same thing. @end deftypefun @@ -1209,6 +1228,8 @@ file itself and not a particular open file descriptor. @comment unistd.h @comment POSIX.1 @deftypefun pid_t tcgetpgrp (int @var{filedes}) +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} +@c Stub, or ioctl on BSD and GNU/Linux. This function returns the process group ID of the foreground process group associated with the terminal open on descriptor @var{filedes}. @@ -1237,6 +1258,8 @@ controlling terminal of the calling process. @comment unistd.h @comment POSIX.1 @deftypefun int tcsetpgrp (int @var{filedes}, pid_t @var{pgid}) +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} +@c Stub, or ioctl on BSD and GNU/Linux. This function is used to set a terminal's foreground process group ID. The argument @var{filedes} is a descriptor which specifies the terminal; @var{pgid} specifies the process group. The calling process must be a @@ -1276,6 +1299,8 @@ process. @comment termios.h @comment Unix98 @deftypefun pid_t tcgetsid (int @var{fildes}) +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} +@c Ioctl call, if available, or tcgetpgrp followed by getsid. This function is used to obtain the process group ID of the session for which the terminal specified by @var{fildes} is the controlling terminal. If the call is successful the group ID is returned. Otherwise the |