diff options
Diffstat (limited to 'libiberty/functions.texi')
| -rw-r--r-- | libiberty/functions.texi | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/libiberty/functions.texi b/libiberty/functions.texi index 7d9c181..18b2480 100644 --- a/libiberty/functions.texi +++ b/libiberty/functions.texi @@ -483,7 +483,7 @@ reading and writing. @end deftypefn -@c pexecute.c:67 +@c pexecute.txh:1 @deftypefn Extension int pexecute (const char *@var{program}, char * const *@var{argv}, const char *@var{this_pname}, const char *@var{temp_base}, char **@var{errmsg_fmt}, char **@var{errmsg_arg}, int flags) Executes a program. @@ -498,14 +498,15 @@ use if needed. This is currently only needed for MS-DOS ports that don't use @code{go32} (do any still exist?). Ports that don't need it can pass @code{NULL}. -(@code{@var{flags} & PEXECUTE_SEARCH}) is non-zero if @env{PATH} should be searched -(??? It's not clear that GCC passes this flag correctly). (@code{@var{flags} & -PEXECUTE_FIRST}) is nonzero for the first process in chain. -(@code{@var{flags} & PEXECUTE_FIRST}) is nonzero for the last process -in chain. The first/last flags could be simplified to only mark the -last of a chain of processes but that requires the caller to always -mark the last one (and not give up early if some error occurs). -It's more robust to require the caller to mark both ends of the chain. +(@code{@var{flags} & PEXECUTE_SEARCH}) is non-zero if @env{PATH} +should be searched (??? It's not clear that GCC passes this flag +correctly). (@code{@var{flags} & PEXECUTE_FIRST}) is nonzero for the +first process in chain. (@code{@var{flags} & PEXECUTE_FIRST}) is +nonzero for the last process in chain. The first/last flags could be +simplified to only mark the last of a chain of processes but that +requires the caller to always mark the last one (and not give up +early if some error occurs). It's more robust to require the caller +to mark both ends of the chain. The result is the pid on systems like Unix where we @code{fork}/@code{exec} and on systems like WIN32 and OS/2 where we @@ -540,21 +541,23 @@ name is unset/removed. @end deftypefn -@c pexecute.c:104 +@c pexecute.txh:39 @deftypefn Extension int pwait (int @var{pid}, int *@var{status}, int @var{flags}) Waits for a program started by @code{pexecute} to finish. @var{pid} is the process id of the task to wait for. @var{status} is -the `status' argument to wait. @var{flags} is currently unused (allows -future enhancement without breaking upward compatibility). Pass 0 for now. +the `status' argument to wait. @var{flags} is currently unused +(allows future enhancement without breaking upward compatibility). +Pass 0 for now. The result is the pid of the child reaped, or -1 for failure (@code{errno} says why). -On systems that don't support waiting for a particular child, @var{pid} is -ignored. On systems like MS-DOS that don't really multitask @code{pwait} -is just a mechanism to provide a consistent interface for the caller. +On systems that don't support waiting for a particular child, +@var{pid} is ignored. On systems like MS-DOS that don't really +multitask @code{pwait} is just a mechanism to provide a consistent +interface for the caller. @end deftypefn |