|
cctools
|
#include <unistd.h>#include <stdio.h>Go to the source code of this file.
Functions | |
| pid_t | dpopen (const char *command, FILE **in, FILE **out) |
| Fast process invocation. More... | |
| int | dpclose (FILE *in, FILE *out, pid_t pid) |
| Conclude a fast process stream. More... | |
Double Pipe process invocation.
| pid_t dpopen | ( | const char * | command, |
| FILE ** | in, | ||
| FILE ** | out | ||
| ) |
Fast process invocation.
fast_popen opens a process for execution, providing its output on a stream, just like the standard popen. However, fast_popen does not invoke the shell to interpret the command, which can be very time consuming. Thus, the command must be given as a full path, and may not include quotes, variables, or other features of the shell. (Note: there is no pipe close, we rely on SIGPIPE to kill the child.)
| command | The command string to execute. |
| in | A pointer to a standard I/O stream, which this function will attach to the standard input of the process. |
| out | A pointer to a standard I/O stream, which this function will attach to the standard input of the child process. |