libc: initial implementation of posix_spawn

2026-05-30 10:02:45 +01:00
parent 2413538cb6
commit bfd191a336
9 changed files with 406 additions and 2 deletions
@@ -0,0 +1,86 @@
+#ifndef SPAWN_H_
+#define SPAWN_H_
+
+#include <signal.h>
+#include <sys/types.h>
+
+#define __POSIX_SPAWN_FILE_ACTIONS_SIZE__ 32
+#define __POSIX_SPAWNATTR_SIZE__          32
+
+struct sched_param;
+
+typedef struct posix_spawn_file_actions {
+	char __opaque[__POSIX_SPAWN_FILE_ACTIONS_SIZE__];
+} posix_spawn_file_actions_t;
+
+typedef struct posix_spawnattr {
+	char __opaque[__POSIX_SPAWN_FILE_ACTIONS_SIZE__];
+} posix_spawnattr_t;
+
+extern int posix_spawn_file_actions_init(
+	posix_spawn_file_actions_t *restrict file_actions);
+extern int posix_spawn_file_actions_destroy(
+	posix_spawn_file_actions_t *restrict file_actions);
+extern int posix_spawn_file_actions_addopen(
+	posix_spawn_file_actions_t *restrict file_actions,
+	int fildes,
+	const char *path,
+	int oflag,
+	mode_t mode);
+extern int posix_spawn_file_actions_addclose(
+	posix_spawn_file_actions_t *restrict file_actions,
+	int fildes);
+extern int posix_spawn_file_actions_adddup2(
+	posix_spawn_file_actions_t *restrict file_actions,
+	int fildes,
+	int newfildes);
+
+extern int posix_spawnattr_init(posix_spawnattr_t *restrict attrp);
+extern int posix_spawnattr_destroy(posix_spawnattr_t *restrict attrp);
+extern int posix_spawnattr_getflags(
+	const posix_spawnattr_t *restrict attrp,
+	short *restrict flags);
+extern int posix_spawnattr_setflags(
+	posix_spawnattr_t *restrict attrp,
+	short flags);
+extern int posix_spawnattr_getschedpolicy(
+	const posix_spawnattr_t *restrict attrp,
+	int *restrict schedpolicy);
+extern int posix_spawnattr_setschedpolicy(
+	posix_spawnattr_t *restrict attrp,
+	int schedpolicy);
+extern int posix_spawnattr_getschedparam(
+	const posix_spawnattr_t *restrict attrp,
+	struct sched_param *restrict schedparam);
+extern int posix_spawnattr_setschedparam(
+	posix_spawnattr_t *restrict attrp,
+	const struct sched_param *restrict schedparam);
+extern int posix_spawnattr_getpgroup(
+	const posix_spawnattr_t *restrict attrp,
+	pid_t *restrict pgroup);
+extern int posix_spawnattr_setpgroup(
+	posix_spawnattr_t *restrict attrp,
+	pid_t pgroup);
+extern int posix_spawnattr_getsigmask(
+	const posix_spawnattr_t *restrict attrp,
+	sigset_t *restrict sigmask);
+extern int posix_spawnattr_setsigmask(
+	posix_spawnattr_t *restrict attrp,
+	sigset_t sigmask);
+
+extern int posix_spawn(
+	pid_t *restrict pid,
+	const char *restrict path,
+	const posix_spawn_file_actions_t *restrict file_actions,
+	const posix_spawnattr_t *restrict attrp,
+	char *const argv[],
+	char *const envp[]);
+extern int posix_spawnp(
+	pid_t *restrict pid,
+	const char *restrict file,
+	const posix_spawn_file_actions_t *restrict file_actions,
+	const posix_spawnattr_t *restrict attrp,
+	char *const argv[],
+	char *const envp[]);
+
+#endif