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https://github.com/git/git
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abc9dbc0c1
Implement `stop` and `status` client commands to control and query the status of a `fsmonitor--daemon` server process (and implicitly start a server process if necessary). Later commits will implement the actual server and monitor the file system. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
98 lines
2.2 KiB
C
98 lines
2.2 KiB
C
#include "builtin.h"
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#include "config.h"
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#include "parse-options.h"
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#include "fsmonitor.h"
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#include "fsmonitor-ipc.h"
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#include "simple-ipc.h"
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#include "khash.h"
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static const char * const builtin_fsmonitor__daemon_usage[] = {
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N_("git fsmonitor--daemon stop"),
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N_("git fsmonitor--daemon status"),
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NULL
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};
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#ifdef HAVE_FSMONITOR_DAEMON_BACKEND
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/*
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* Acting as a CLIENT.
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*
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* Send a "quit" command to the `git-fsmonitor--daemon` (if running)
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* and wait for it to shutdown.
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*/
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static int do_as_client__send_stop(void)
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{
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struct strbuf answer = STRBUF_INIT;
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int ret;
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ret = fsmonitor_ipc__send_command("quit", &answer);
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/* The quit command does not return any response data. */
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strbuf_release(&answer);
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if (ret)
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return ret;
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trace2_region_enter("fsm_client", "polling-for-daemon-exit", NULL);
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while (fsmonitor_ipc__get_state() == IPC_STATE__LISTENING)
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sleep_millisec(50);
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trace2_region_leave("fsm_client", "polling-for-daemon-exit", NULL);
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return 0;
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}
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static int do_as_client__status(void)
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{
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enum ipc_active_state state = fsmonitor_ipc__get_state();
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switch (state) {
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case IPC_STATE__LISTENING:
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printf(_("fsmonitor-daemon is watching '%s'\n"),
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the_repository->worktree);
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return 0;
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default:
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printf(_("fsmonitor-daemon is not watching '%s'\n"),
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the_repository->worktree);
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return 1;
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}
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}
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int cmd_fsmonitor__daemon(int argc, const char **argv, const char *prefix)
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{
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const char *subcmd;
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struct option options[] = {
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OPT_END()
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};
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git_config(git_default_config, NULL);
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argc = parse_options(argc, argv, prefix, options,
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builtin_fsmonitor__daemon_usage, 0);
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if (argc != 1)
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usage_with_options(builtin_fsmonitor__daemon_usage, options);
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subcmd = argv[0];
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if (!strcmp(subcmd, "stop"))
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return !!do_as_client__send_stop();
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if (!strcmp(subcmd, "status"))
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return !!do_as_client__status();
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die(_("Unhandled subcommand '%s'"), subcmd);
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}
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#else
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int cmd_fsmonitor__daemon(int argc, const char **argv, const char *prefix)
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{
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struct option options[] = {
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OPT_END()
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};
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if (argc == 2 && !strcmp(argv[1], "-h"))
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usage_with_options(builtin_fsmonitor__daemon_usage, options);
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die(_("fsmonitor--daemon not supported on this platform"));
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}
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#endif
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