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[console] support background command execution

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Launch a thread to execute commands when the last argument is ampersand

Signed-off-by: Chieh-Min Wang <cmwang@google.com>
This commit is contained in:
Chieh-Min Wang
2024-04-29 15:45:46 +08:00
committed by Travis Geiselbrecht
parent f70a9031ac
commit 816be268be
1 changed files with 34 additions and 1 deletions
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35
lib/console/console.c
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@@ -566,6 +566,23 @@ static void convert_args(int argc, console_cmd_args *argv) {
}
}
typedef struct background_cmd_args {
const console_cmd *command;
int argc;
console_cmd_args *args;
} background_cmd_args;
static int background_command_exec(void *arg)
{
background_cmd_args *bg_args = (background_cmd_args *)arg;
int ret = bg_args->command->cmd_callback(bg_args->argc, bg_args->args);
for (int i = 0; i < bg_args->argc; i++) {
free((void *)bg_args->args[i].str);
}
free((void *)bg_args->args);
free((void *)bg_args);
return ret;
}
static status_t command_loop(console_t *con, int (*get_line)(const char **, void *), void *get_line_cookie, bool showprompt, bool locked) {
bool exit;
@@ -637,7 +654,23 @@ static status_t command_loop(console_t *con, int (*get_line)(const char **, void
mutex_acquire(&con->lock);
con->abort_script = false;
con->lastresult = command->cmd_callback(argc, args);
if (strcmp(args[argc - 1].str, "&") == 0) { // background execution
background_cmd_args *bg_args =
(background_cmd_args *)malloc(sizeof(background_cmd_args));
bg_args->command = command;
bg_args->argc = argc - 1;
bg_args->args = (console_cmd_args *)malloc(argc * sizeof(console_cmd_args));
for (int i = 0; i < argc; i++) {
memcpy(&bg_args->args[i], &args[i], sizeof(console_cmd_args));
bg_args->args[i].str = strdup(args[i].str);
}
thread_t *thr = thread_create("background_command_exec", background_command_exec,
bg_args, DEFAULT_PRIORITY,
DEFAULT_STACK_SIZE);
con->lastresult = thread_detach_and_resume(thr);
} else {
con->lastresult = command->cmd_callback(argc, args);
}
#if WITH_LIB_ENV
bool report_result;