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Ns_ExecProcess.3aolserver
Langue: en
Version: 4.0 (debian - 07/07/09)
Section: 3 (Bibliothèques de fonctions)
NAME
Ns_ExecArgblk, Ns_ExecArgv, Ns_ExecProc, Ns_ExecProcess, Ns_Fork, Ns_GetEnviron, Ns_WaitForProcess, Ns_WaitProcess, ns_fork - External process executionSYNOPSIS
#include "ns.h" int Ns_ExecArgblk(char *exec, char *dir, int fdin, int fdout, char *args, Ns_Set *env) int Ns_ExecArgv(char *exec, char *dir, int fdin, int fdout, char **argv, Ns_Set *env) int Ns_ExecProc(char *exec, char **argv) int Ns_ExecProcess(char *exec, char *dir, int fdin, int fdout, char *args, Ns_Set *env) int Ns_Fork(void) char **Ns_GetEnviron(void) int Ns_WaitForProcess(int pid, int *statusPtr) int Ns_WaitProcess(int pid) int ns_fork(void)
DESCRIPTION
These functions handle fork and exec operations. See files: nsd/exec.c, nsd/tclenv.c and nsthread/fork.c.
- Ns_ExecArgblk(exec, dir, fdin, fdout, args, env)
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Executes a command in a child process. Return process id of child process exec'ing the command or -1 on failure. Provides extended error checking and error messages.
- Ns_ExecArgv(exec, dir, fdin, fdout, argv, env)
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Execute a command in a child process using fork(2) and execve(2), returns the process id of child process exec'ing the command or -1 on failure. The child sends an extended error message to the parent.
- Ns_ExecProc(exec, argv)
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Executes a command in a child process. Returns the process id of the child process exec'ing the command or -1 on failure. Simplifies call to Ns_ExecArgv.
- Ns_ExecProcess(exec, dir, fdin, fdout, args, env)
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Executes a command in a child process. Returns the process id of the child process exec'ing the command or -1 on failure. Calls Ns_ExecArgblk with same arguments.
- Ns_Fork()
- Posix style fork(), using fork1() on Solaris if needed. See fork(2) man page. Calls ns_fork.
- Ns_GetEnviron()
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Returns pointer to the environment vector.
- Ns_WaitForProcess(pid, statusPtr)
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Wait for child process. Returns NS_OK on success, or NS_ERROR on failure. *statusPtr is set to the exit code of the child process.
- Ns_WaitProcess(pid)
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Wait for child process. Calls Ns_WaitForProcess with NULL statusPtr. Returns NS_OK on success, or NS_ERROR on failure.
- ns_fork()
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Posix style fork(), using fork1() on Solaris if needed.
SEE ALSO
nsd(1), info(n)KEYWORDS
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