From 740cfb20ae7e386391fb6528a8765e5827c9781c Mon Sep 17 00:00:00 2001
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From: Jeffy Chen <jeffy.chen@rock-chips.com>
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Date: Wed, 26 May 2021 07:10:47 +0800
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Subject: [PATCH] Support sync events
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Wait for child process when handling sync events(start with '*').
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For example:
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[Keys]
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*POWER:1 = /etc/power-key.sh press
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*POWER:0 = /etc/power-key.sh release
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Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
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---
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input-event-daemon.c | 23 +++++++++++++++++++----
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input-event-daemon.h | 4 +++-
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2 files changed, 22 insertions(+), 5 deletions(-)
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diff --git a/input-event-daemon.c b/input-event-daemon.c
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index 4bf2a33..e1528a6 100644
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--- a/input-event-daemon.c
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+++ b/input-event-daemon.c
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@@ -233,7 +233,7 @@ static int idle_event_parse(unsigned long idle) {
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fprintf(stderr, " exec : \"%s\"\n\n", fired_idle_event->exec);
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}
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- daemon_exec(fired_idle_event->exec);
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+ daemon_exec(fired_idle_event->exec, 0);
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}
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return (fired_idle_event != NULL);
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@@ -371,7 +371,7 @@ static void input_parse_event(struct input_event *event, const char *src) {
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fired_key_event = key_event_parse(event->code, event->value, src);
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if(fired_key_event != NULL) {
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- daemon_exec(fired_key_event->exec);
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+ daemon_exec(fired_key_event->exec, fired_key_event->sync);
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}
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break;
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case EV_SW:
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@@ -379,7 +379,7 @@ static void input_parse_event(struct input_event *event, const char *src) {
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switch_event_parse(event->code, event->value, src);
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if(fired_switch_event != NULL) {
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- daemon_exec(fired_switch_event->exec);
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+ daemon_exec(fired_switch_event->exec, fired_switch_event->sync);
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}
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break;
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@@ -549,6 +549,12 @@ static const char *config_key_event(char *shortcut, char *exec) {
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strsep(&value, ":");
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shortcut = config_trim_string(shortcut);
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+ new_key_event->sync = 0;
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+ if (shortcut[0] == '*') {
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+ new_key_event->sync = 1;
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+ shortcut++;
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+ }
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+
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if((code = strrchr(shortcut, '+')) != NULL) {
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*code = '\0';
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code = config_trim_string(code+1);
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@@ -650,6 +656,12 @@ static const char *config_switch_event(char *switchcode, char *exec) {
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code = config_trim_string(code);
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value = config_trim_string(value);
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+ new_switch_event->sync = 0;
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+ if (code[0] == '*') {
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+ new_switch_event->sync = 1;
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+ code++;
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+ }
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+
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new_switch_event->code = strdup(code);
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new_switch_event->value = atoi(value);
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new_switch_event->exec = strdup(exec);
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@@ -783,8 +795,9 @@ void daemon_start_listener() {
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}
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}
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-static void daemon_exec(const char *command) {
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+static void daemon_exec(const char *command, int sync) {
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pid_t pid = fork();
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+
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if(pid == 0) {
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const char *args[] = {
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"sh", "-c", command, NULL
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@@ -810,6 +823,8 @@ static void daemon_exec(const char *command) {
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_exit(127);
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} else if(pid < 0) {
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perror(PROGRAM": fork()");
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+ } else if (sync) {
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+ waitpid(pid, NULL, 0);
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}
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return;
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diff --git a/input-event-daemon.h b/input-event-daemon.h
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index 7cab13d..4a6944b 100644
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--- a/input-event-daemon.h
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+++ b/input-event-daemon.h
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@@ -41,6 +41,7 @@ typedef struct key_event {
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const char *modifiers[MAX_MODIFIERS];
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size_t modifier_n;
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const char *exec;
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+ int sync;
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} key_event_t;
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@@ -53,6 +54,7 @@ typedef struct switch_event {
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const char *code;
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signed int value;
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const char *exec;
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+ int sync;
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} switch_event_t;
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/**
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@@ -109,7 +111,7 @@ static char *config_trim_string(char *str);
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void daemon_init();
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void daemon_start_listener();
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-static void daemon_exec(const char *command);
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+static void daemon_exec(const char *command, int sync);
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void daemon_clean();
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static void daemon_print_help();
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static void daemon_print_version();
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--
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2.20.1
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