Add interruptible function to read from pipe

This will avoid to block Ctrl+c if the process the pipe is read from
takes too much time.
This commit is contained in:
Romain Vimont 2021-11-17 18:30:54 +01:00
parent cb65531533
commit ea454e9cee
2 changed files with 36 additions and 0 deletions

View file

@ -20,3 +20,31 @@ sc_process_check_success_intr(struct sc_intr *intr, sc_pid pid,
return ret;
}
ssize_t
sc_pipe_read_intr(struct sc_intr *intr, sc_pid pid, sc_pipe pipe, char *data,
size_t len) {
if (!sc_intr_set_process(intr, pid)) {
// Already interrupted
return false;
}
ssize_t ret = sc_pipe_read(pipe, data, len);
sc_intr_set_process(intr, SC_PROCESS_NONE);
return ret;
}
ssize_t
sc_pipe_read_all_intr(struct sc_intr *intr, sc_pid pid, sc_pipe pipe,
char *data, size_t len) {
if (!sc_intr_set_process(intr, pid)) {
// Already interrupted
return false;
}
ssize_t ret = sc_pipe_read_all(pipe, data, len);
sc_intr_set_process(intr, SC_PROCESS_NONE);
return ret;
}

View file

@ -10,4 +10,12 @@ bool
sc_process_check_success_intr(struct sc_intr *intr, sc_pid pid,
const char *name, bool close);
ssize_t
sc_pipe_read_intr(struct sc_intr *intr, sc_pid pid, sc_pipe pipe, char *data,
size_t len);
ssize_t
sc_pipe_read_all_intr(struct sc_intr *intr, sc_pid pid, sc_pipe pipe,
char *data, size_t len);
#endif