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authorIndrajith K L2022-12-03 17:00:20 +0530
committerIndrajith K L2022-12-03 17:00:20 +0530
commitf5c4671bfbad96bf346bd7e9a21fc4317b4959df (patch)
tree2764fc62da58f2ba8da7ed341643fc359873142f /v_windows/v/old/vlib/os/process_nix.c.v
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Adds most of the toolsHEADmaster
Diffstat (limited to 'v_windows/v/old/vlib/os/process_nix.c.v')
-rw-r--r--v_windows/v/old/vlib/os/process_nix.c.v146
1 files changed, 146 insertions, 0 deletions
diff --git a/v_windows/v/old/vlib/os/process_nix.c.v b/v_windows/v/old/vlib/os/process_nix.c.v
new file mode 100644
index 0000000..74140d1
--- /dev/null
+++ b/v_windows/v/old/vlib/os/process_nix.c.v
@@ -0,0 +1,146 @@
+module os
+
+fn C.setpgid(pid int, pgid int) int
+
+fn (mut p Process) unix_spawn_process() int {
+ mut pipeset := [6]int{}
+ if p.use_stdio_ctl {
+ _ = C.pipe(&pipeset[0]) // pipe read end 0 <- 1 pipe write end
+ _ = C.pipe(&pipeset[2]) // pipe read end 2 <- 3 pipe write end
+ _ = C.pipe(&pipeset[4]) // pipe read end 4 <- 5 pipe write end
+ }
+ pid := fork()
+ if pid != 0 {
+ // This is the parent process after the fork.
+ // NB: pid contains the process ID of the child process
+ if p.use_stdio_ctl {
+ p.stdio_fd[0] = pipeset[1] // store the write end of child's in
+ p.stdio_fd[1] = pipeset[2] // store the read end of child's out
+ p.stdio_fd[2] = pipeset[4] // store the read end of child's err
+ // close the rest of the pipe fds, the parent does not need them
+ fd_close(pipeset[0])
+ fd_close(pipeset[3])
+ fd_close(pipeset[5])
+ }
+ return pid
+ }
+ //
+ // Here, we are in the child process.
+ // It still shares file descriptors with the parent process,
+ // but it is otherwise independant and can do stuff *without*
+ // affecting the parent process.
+ //
+ if p.use_pgroup {
+ C.setpgid(0, 0)
+ }
+ if p.use_stdio_ctl {
+ // Redirect the child standart in/out/err to the pipes that
+ // were created in the parent.
+ // Close the parent's pipe fds, the child do not need them:
+ fd_close(pipeset[1])
+ fd_close(pipeset[2])
+ fd_close(pipeset[4])
+ // redirect the pipe fds to the child's in/out/err fds:
+ C.dup2(pipeset[0], 0)
+ C.dup2(pipeset[3], 1)
+ C.dup2(pipeset[5], 2)
+ // close the pipe fdsx after the redirection
+ fd_close(pipeset[0])
+ fd_close(pipeset[3])
+ fd_close(pipeset[5])
+ }
+ execve(p.filename, p.args, p.env) or {
+ eprintln(err)
+ exit(1)
+ }
+ return 0
+}
+
+fn (mut p Process) unix_stop_process() {
+ C.kill(p.pid, C.SIGSTOP)
+}
+
+fn (mut p Process) unix_resume_process() {
+ C.kill(p.pid, C.SIGCONT)
+}
+
+fn (mut p Process) unix_kill_process() {
+ C.kill(p.pid, C.SIGKILL)
+}
+
+fn (mut p Process) unix_kill_pgroup() {
+ C.kill(-p.pid, C.SIGKILL)
+}
+
+fn (mut p Process) unix_wait() {
+ cstatus := 0
+ ret := C.waitpid(p.pid, &cstatus, 0)
+ if ret == -1 {
+ p.err = posix_get_error_msg(C.errno)
+ return
+ }
+ pret, is_signaled := posix_wait4_to_exit_status(cstatus)
+ if is_signaled {
+ p.status = .aborted
+ p.err = 'Terminated by signal ${ret:2d} (${sigint_to_signal_name(pret)})'
+ } else {
+ p.status = .exited
+ }
+ p.code = pret
+}
+
+fn (mut p Process) unix_is_alive() bool {
+ cstatus := 0
+ ret := C.waitpid(p.pid, &cstatus, C.WNOHANG)
+ if ret == -1 {
+ p.err = posix_get_error_msg(C.errno)
+ return false
+ }
+ if ret == 0 {
+ return true
+ }
+ pret, is_signaled := posix_wait4_to_exit_status(cstatus)
+ if is_signaled {
+ p.status = .aborted
+ p.err = 'Terminated by signal ${ret:2d} (${sigint_to_signal_name(pret)})'
+ } else {
+ p.status = .exited
+ }
+ p.code = pret
+ return false
+}
+
+// these are here to make v_win.c/v.c generation work in all cases:
+fn (mut p Process) win_spawn_process() int {
+ return 0
+}
+
+fn (mut p Process) win_stop_process() {
+}
+
+fn (mut p Process) win_resume_process() {
+}
+
+fn (mut p Process) win_kill_process() {
+}
+
+fn (mut p Process) win_kill_pgroup() {
+}
+
+fn (mut p Process) win_wait() {
+}
+
+fn (mut p Process) win_is_alive() bool {
+ return false
+}
+
+fn (mut p Process) win_write_string(idx int, s string) {
+}
+
+fn (mut p Process) win_read_string(idx int, maxbytes int) (string, int) {
+ return '', 0
+}
+
+fn (mut p Process) win_slurp(idx int) string {
+ return ''
+}