refactor: rename "process" => "proc" #30387

Problem:
- "process" is often used as a verb (`multiqueue_process_events`), which
  is ambiguous for cases where it's used as a topic.
- The documented naming convention for processes is "proc".
  - `:help dev-name-common`
- Shorter is better, when it doesn't harm readability or
  discoverability.

Solution:
Rename "process" => "proc" in all C symbols and module names.

1 files changed, 0 insertions, 417 deletions

diff --git a/src/nvim/os/pty_process_unix.c b/src/nvim/os/pty_process_unix.c
deleted file mode 100644
index cfa4dcada7..0000000000
--- a/src/nvim/os/pty_process_unix.c
+++ /dev/null
@@ -1,417 +0,0 @@
-// Some of the code came from pangoterm and libuv
-
-#include <assert.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <sys/wait.h>
-#include <uv.h>
-
-// forkpty is not in POSIX, so headers are platform-specific
-#if defined(__FreeBSD__) || defined(__DragonFly__)
-# include <libutil.h>
-#elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
-# include <util.h>
-#elif defined(__sun)
-# include <fcntl.h>
-# include <signal.h>
-# include <sys/stream.h>
-# include <sys/syscall.h>
-# include <unistd.h>
-#else
-# include <pty.h>
-#endif
-
-#ifdef __APPLE__
-# include <crt_externs.h>
-#endif
-
-#include "auto/config.h"
-#include "klib/klist.h"
-#include "nvim/eval/typval.h"
-#include "nvim/event/defs.h"
-#include "nvim/event/loop.h"
-#include "nvim/event/process.h"
-#include "nvim/log.h"
-#include "nvim/os/fs.h"
-#include "nvim/os/os_defs.h"
-#include "nvim/os/pty_process.h"
-#include "nvim/os/pty_process_unix.h"
-#include "nvim/types_defs.h"
-
-#ifdef INCLUDE_GENERATED_DECLARATIONS
-# include "os/pty_process_unix.c.generated.h"
-#endif
-
-#if defined(__sun) && !defined(HAVE_FORKPTY)
-
-// this header defines STR, just as nvim.h, but it is defined as ('S'<<8),
-// to avoid #undef STR, #undef STR, #define STR ('S'<<8) just delay the
-// inclusion of the header even though it gets include out of order.
-# include <sys/stropts.h>
-
-static int openpty(int *amaster, int *aslave, char *name, struct termios *termp,
-                   struct winsize *winp)
-{
-  int slave = -1;
-  int master = open("/dev/ptmx", O_RDWR);
-  if (master == -1) {
-    goto error;
-  }
-
-  // grantpt will invoke a setuid program to change permissions
-  // and might fail if SIGCHLD handler is set, temporarily reset
-  // while running
-  void (*sig_saved)(int) = signal(SIGCHLD, SIG_DFL);
-  int res = grantpt(master);
-  signal(SIGCHLD, sig_saved);
-
-  if (res == -1 || unlockpt(master) == -1) {
-    goto error;
-  }
-
-  char *slave_name = ptsname(master);
-  if (slave_name == NULL) {
-    goto error;
-  }
-
-  slave = open(slave_name, O_RDWR|O_NOCTTY);
-  if (slave == -1) {
-    goto error;
-  }
-
-  // ptem emulates a terminal when used on a pseudo terminal driver,
-  // must be pushed before ldterm
-  ioctl(slave, I_PUSH, "ptem");
-  // ldterm provides most of the termio terminal interface
-  ioctl(slave, I_PUSH, "ldterm");
-  // ttcompat compatibility with older terminal ioctls
-  ioctl(slave, I_PUSH, "ttcompat");
-
-  if (termp) {
-    tcsetattr(slave, TCSAFLUSH, termp);
-  }
-  if (winp) {
-    ioctl(slave, TIOCSWINSZ, winp);
-  }
-
-  *amaster = master;
-  *aslave = slave;
-  // ignoring name, not passed and size is unknown in the API
-
-  return 0;
-
-error:
-  if (slave != -1) {
-    close(slave);
-  }
-  if (master != -1) {
-    close(master);
-  }
-  return -1;
-}
-
-static int login_tty(int fd)
-{
-  setsid();
-  if (ioctl(fd, TIOCSCTTY, NULL) == -1) {
-    return -1;
-  }
-
-  dup2(fd, STDIN_FILENO);
-  dup2(fd, STDOUT_FILENO);
-  dup2(fd, STDERR_FILENO);
-  if (fd > STDERR_FILENO) {
-    close(fd);
-  }
-
-  return 0;
-}
-
-static pid_t forkpty(int *amaster, char *name, struct termios *termp, struct winsize *winp)
-{
-  int master, slave;
-  if (openpty(&master, &slave, name, termp, winp) == -1) {
-    return -1;
-  }
-
-  pid_t pid = fork();
-  switch (pid) {
-  case -1:
-    close(master);
-    close(slave);
-    return -1;
-  case 0:
-    close(master);
-    login_tty(slave);
-    return 0;
-  default:
-    close(slave);
-    *amaster = master;
-    return pid;
-  }
-}
-
-#endif
-
-/// @returns zero on success, or negative error code
-int pty_process_spawn(PtyProcess *ptyproc)
-  FUNC_ATTR_NONNULL_ALL
-{
-  // termios initialized at first use
-  static struct termios termios_default;
-  if (!termios_default.c_cflag) {
-    init_termios(&termios_default);
-  }
-
-  int status = 0;  // zero or negative error code (libuv convention)
-  Process *proc = (Process *)ptyproc;
-  assert(proc->err.s.closed);
-  uv_signal_start(&proc->loop->children_watcher, chld_handler, SIGCHLD);
-  ptyproc->winsize = (struct winsize){ ptyproc->height, ptyproc->width, 0, 0 };
-  uv_disable_stdio_inheritance();
-  int master;
-  int pid = forkpty(&master, NULL, &termios_default, &ptyproc->winsize);
-
-  if (pid < 0) {
-    status = -errno;
-    ELOG("forkpty failed: %s", strerror(errno));
-    return status;
-  } else if (pid == 0) {
-    init_child(ptyproc);  // never returns
-  }
-
-  // make sure the master file descriptor is non blocking
-  int master_status_flags = fcntl(master, F_GETFL);
-  if (master_status_flags == -1) {
-    status = -errno;
-    ELOG("Failed to get master descriptor status flags: %s", strerror(errno));
-    goto error;
-  }
-  if (fcntl(master, F_SETFL, master_status_flags | O_NONBLOCK) == -1) {
-    status = -errno;
-    ELOG("Failed to make master descriptor non-blocking: %s", strerror(errno));
-    goto error;
-  }
-
-  // Other jobs and providers should not get a copy of this file descriptor.
-  if (os_set_cloexec(master) == -1) {
-    status = -errno;
-    ELOG("Failed to set CLOEXEC on ptmx file descriptor");
-    goto error;
-  }
-
-  if (!proc->in.closed
-      && (status = set_duplicating_descriptor(master, &proc->in.uv.pipe))) {
-    goto error;
-  }
-  if (!proc->out.s.closed
-      && (status = set_duplicating_descriptor(master, &proc->out.s.uv.pipe))) {
-    goto error;
-  }
-
-  ptyproc->tty_fd = master;
-  proc->pid = pid;
-  return 0;
-
-error:
-  close(master);
-  kill(pid, SIGKILL);
-  waitpid(pid, NULL, 0);
-  return status;
-}
-
-const char *pty_process_tty_name(PtyProcess *ptyproc)
-{
-  return ptsname(ptyproc->tty_fd);
-}
-
-void pty_process_resize(PtyProcess *ptyproc, uint16_t width, uint16_t height)
-  FUNC_ATTR_NONNULL_ALL
-{
-  ptyproc->winsize = (struct winsize){ height, width, 0, 0 };
-  ioctl(ptyproc->tty_fd, TIOCSWINSZ, &ptyproc->winsize);
-}
-
-void pty_process_close(PtyProcess *ptyproc)
-  FUNC_ATTR_NONNULL_ALL
-{
-  pty_process_close_master(ptyproc);
-  Process *proc = (Process *)ptyproc;
-  if (proc->internal_close_cb) {
-    proc->internal_close_cb(proc);
-  }
-}
-
-void pty_process_close_master(PtyProcess *ptyproc) FUNC_ATTR_NONNULL_ALL
-{
-  if (ptyproc->tty_fd >= 0) {
-    close(ptyproc->tty_fd);
-    ptyproc->tty_fd = -1;
-  }
-}
-
-void pty_process_teardown(Loop *loop)
-{
-  uv_signal_stop(&loop->children_watcher);
-}
-
-static void init_child(PtyProcess *ptyproc)
-  FUNC_ATTR_NONNULL_ALL
-{
-#if defined(HAVE__NSGETENVIRON)
-# define environ (*_NSGetEnviron())
-#else
-  extern char **environ;
-#endif
-  // New session/process-group. #6530
-  setsid();
-
-  signal(SIGCHLD, SIG_DFL);
-  signal(SIGHUP, SIG_DFL);
-  signal(SIGINT, SIG_DFL);
-  signal(SIGQUIT, SIG_DFL);
-  signal(SIGTERM, SIG_DFL);
-  signal(SIGALRM, SIG_DFL);
-
-  Process *proc = (Process *)ptyproc;
-  if (proc->cwd && os_chdir(proc->cwd) != 0) {
-    ELOG("chdir(%s) failed: %s", proc->cwd, strerror(errno));
-    return;
-  }
-
-  const char *prog = process_get_exepath(proc);
-
-  assert(proc->env);
-  environ = tv_dict_to_env(proc->env);
-  execvp(prog, proc->argv);
-  ELOG("execvp(%s) failed: %s", prog, strerror(errno));
-
-  _exit(122);  // 122 is EXEC_FAILED in the Vim source.
-}
-
-static void init_termios(struct termios *termios) FUNC_ATTR_NONNULL_ALL
-{
-  // Taken from pangoterm
-  termios->c_iflag = ICRNL|IXON;
-  termios->c_oflag = OPOST|ONLCR;
-#ifdef TAB0
-  termios->c_oflag |= TAB0;
-#endif
-  termios->c_cflag = CS8|CREAD;
-  termios->c_lflag = ISIG|ICANON|IEXTEN|ECHO|ECHOE|ECHOK;
-
-  // not using cfsetspeed, not available on all platforms
-  cfsetispeed(termios, 38400);
-  cfsetospeed(termios, 38400);
-
-#ifdef IUTF8
-  termios->c_iflag |= IUTF8;
-#endif
-#ifdef NL0
-  termios->c_oflag |= NL0;
-#endif
-#ifdef CR0
-  termios->c_oflag |= CR0;
-#endif
-#ifdef BS0
-  termios->c_oflag |= BS0;
-#endif
-#ifdef VT0
-  termios->c_oflag |= VT0;
-#endif
-#ifdef FF0
-  termios->c_oflag |= FF0;
-#endif
-#ifdef ECHOCTL
-  termios->c_lflag |= ECHOCTL;
-#endif
-#ifdef ECHOKE
-  termios->c_lflag |= ECHOKE;
-#endif
-
-  termios->c_cc[VINTR] = 0x1f & 'C';
-  termios->c_cc[VQUIT] = 0x1f & '\\';
-  termios->c_cc[VERASE] = 0x7f;
-  termios->c_cc[VKILL] = 0x1f & 'U';
-  termios->c_cc[VEOF] = 0x1f & 'D';
-  termios->c_cc[VEOL] = _POSIX_VDISABLE;
-  termios->c_cc[VEOL2] = _POSIX_VDISABLE;
-  termios->c_cc[VSTART] = 0x1f & 'Q';
-  termios->c_cc[VSTOP] = 0x1f & 'S';
-  termios->c_cc[VSUSP] = 0x1f & 'Z';
-  termios->c_cc[VREPRINT] = 0x1f & 'R';
-  termios->c_cc[VWERASE] = 0x1f & 'W';
-  termios->c_cc[VLNEXT] = 0x1f & 'V';
-  termios->c_cc[VMIN] = 1;
-  termios->c_cc[VTIME] = 0;
-}
-
-static int set_duplicating_descriptor(int fd, uv_pipe_t *pipe)
-  FUNC_ATTR_NONNULL_ALL
-{
-  int status = 0;  // zero or negative error code (libuv convention)
-  int fd_dup = dup(fd);
-  if (fd_dup < 0) {
-    status = -errno;
-    ELOG("Failed to dup descriptor %d: %s", fd, strerror(errno));
-    return status;
-  }
-
-  if (os_set_cloexec(fd_dup) == -1) {
-    status = -errno;
-    ELOG("Failed to set CLOEXEC on duplicate fd");
-    goto error;
-  }
-
-  status = uv_pipe_open(pipe, fd_dup);
-  if (status) {
-    ELOG("Failed to set pipe to descriptor %d: %s",
-         fd_dup, uv_strerror(status));
-    goto error;
-  }
-  return status;
-
-error:
-  close(fd_dup);
-  return status;
-}
-
-static void chld_handler(uv_signal_t *handle, int signum)
-{
-  int stat = 0;
-  int pid;
-
-  Loop *loop = handle->loop->data;
-
-  kl_iter(WatcherPtr, loop->children, current) {
-    Process *proc = (*current)->data;
-    do {
-      pid = waitpid(proc->pid, &stat, WNOHANG);
-    } while (pid < 0 && errno == EINTR);
-
-    if (pid <= 0) {
-      continue;
-    }
-
-    if (WIFEXITED(stat)) {
-      proc->status = WEXITSTATUS(stat);
-    } else if (WIFSIGNALED(stat)) {
-      proc->status = 128 + WTERMSIG(stat);
-    }
-    proc->internal_exit_cb(proc);
-  }
-}
-
-PtyProcess pty_process_init(Loop *loop, void *data)
-{
-  PtyProcess rv;
-  rv.process = process_init(loop, kProcessTypePty, data);
-  rv.width = 80;
-  rv.height = 24;
-  rv.tty_fd = -1;
-  return rv;
-}