diff options
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/skalibs/djbunix.h | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/src/include/skalibs/djbunix.h b/src/include/skalibs/djbunix.h index 00d8f00..ebcba18 100644 --- a/src/include/skalibs/djbunix.h +++ b/src/include/skalibs/djbunix.h @@ -183,14 +183,24 @@ extern pid_t child_spawn2 (char const *, char const *const *, char const *const /* - Unified function to fork a child with communication channels (pipes). + Same, with an additional pipe from the child to the parent. + The int * points to 3 fds. + The additional fd# is available to the child in the defined env variable. + */ + +#define SKALIBS_CHILD_SPAWN_FDS_ENVVAR "SKALIBS_CHILD_SPAWN_FDS" + +extern pid_t child_spawn3 (char const *, char const *const *, char const *const *, int *) ; + + + /* + Generalization of the previous functions. * uses posix_spawn() if available, else uses fork+exec - * requests n (the last arg) communication fds between parent and child + * requests n (the last arg) communication fds between parent and child. Uses pipes. * if n=1, equivalent to child_spawn1_pipe; child writes, parent reads. * if n>=2, parent reads on even and writes on odd. */ -#define SKALIBS_CHILD_SPAWN_FDS_ENVVAR "SKALIBS_CHILD_SPAWN_FDS" extern pid_t child_spawn (char const *, char const *const *, char const *const *, int *, unsigned int) ; |