POSIX Processes
Syntax
- pid_t getpid(void);
- pid_t getppid(void);
- pid_t fork(void);
- pid_t waitpid(pid_t pid, int *wstatus, int options);
- int execv(const char *path, char *const argv[]);
Parameters
| Function, Parameter(s), Return Value | Description |
|---|---|
fork() | function name |
| none | n/a |
| Returns PID, 0, or -1 | The calling process receives the PID of the newly create process or -1 on failure. The child (the newly created process) receive 0. In case of failure set errno to either EAGAIN or ENOMEM |
| - | - |
execv() | function name |
const char *path | String containing name of to executable (might inlcude path) |
char *const argv[] | Array of string pointer as arguments |
| Returns -1 on failure | On success this function does not return. |
| - | - |
