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esh: various job control fixes for SIGTTOU, SIGTTIN

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This commit is contained in:
K. Lange 2024-01-19 20:14:56 +09:00
parent e7a681f413
commit b23c2b1a9e
1 changed files with 23 additions and 12 deletions
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35
apps/esh.c
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@ -109,14 +109,17 @@ void set_pgid(int pgid) {
void set_pgrp(int pgid) {
if (shell_interactive == 1 && !is_subshell) {
sigset_t ss;
sigfillset(&ss);
sigprocmask(SIG_SETMASK, &ss, NULL);
tcsetpgrp(STDIN_FILENO, pgid);
sigemptyset(&ss);
sigprocmask(SIG_SETMASK, &ss, NULL);
}
}
void reset_pgrp() {
if (shell_interactive == 1 && !is_subshell) {
tcsetpgrp(STDIN_FILENO, my_pgid);
}
set_pgrp(my_pgid);
}
void shell_install_command(char * name, shell_command_t func, char * desc) {
@ -874,7 +877,7 @@ int wait_for_child(int pgid, char * name, int retpid) {
if (outpid == retpid) {
ret_code_real = ret_code;
}
if (WIFSTOPPED(ret_code)) {
if (outpid != -1 && WIFSTOPPED(ret_code)) {
suspended_pgid = pgid;
if (name) {
void * old = hashmap_set(job_hash, (void*)(intptr_t)pgid, strdup(name));
@ -883,8 +886,9 @@ int wait_for_child(int pgid, char * name, int retpid) {
void * old = hashmap_set(desc_hash, (void*)(intptr_t)pgid, strdup(WSTOPSIG(ret_code) ? strsignal(WSTOPSIG(ret_code)) : "Stopped"));
if (old) free(old);
_stopped = 1;
if (!shell_interactive) continue;
break;
} else {
} else if (outpid != -1) {
suspended_pgid = 0;
if (hashmap_has(job_hash, (void*)(intptr_t)pgid)) {
hashmap_remove(job_hash, (void*)(intptr_t)pgid);
@ -1534,6 +1538,7 @@ _nope:
if (shell_interactive == 1) {
fprintf(stderr, "[%d] %s\n", pgid, arg_starts[0][0]);
hashmap_set(job_hash, (void*)(intptr_t)pgid, strdup(arg_starts[0][0]));
hashmap_set(desc_hash, (void*)(intptr_t)pgid, strdup("Running"));
} else {
hashmap_set(job_hash, (void*)(intptr_t)last_child, strdup(arg_starts[0][0]));
}
@ -1738,8 +1743,6 @@ int main(int argc, char ** argv) {
shell_interactive = 1;
my_pgid = getpgid(0);
signal(SIGTTOU, SIG_IGN);
signal(SIGTTIN, SIG_IGN);
source_eshrc();
add_path();
@ -1752,14 +1755,21 @@ int main(int argc, char ** argv) {
foreach(node, keys) {
int pid = (intptr_t)node->value;
int status = 0;
if (waitpid(-pid, &status, WNOHANG) > 0) {
char * desc = strdup(WTERMSIG(status) ? strsignal(WTERMSIG(status)) : "Done");
if (waitpid(-pid, &status, WNOHANG|WUNTRACED) > 0) {
char * desc;
if (WIFSTOPPED(status)) {
desc = strdup(WSTOPSIG(status) ? strsignal(WSTOPSIG(status)) : "Stopped");
} else {
desc = strdup(WTERMSIG(status) ? strsignal(WTERMSIG(status)) : "Done");
}
void * old = hashmap_set(desc_hash, (void*)(intptr_t)pid, desc);
if (old) free(old);
describe_job(pid);
if (hashmap_has(job_hash, (void*)(intptr_t)pid)) {
hashmap_remove(job_hash, (void*)(intptr_t)pid);
hashmap_remove(desc_hash, (void*)(intptr_t)pid);
if (WIFEXITED(status)) {
if (hashmap_has(job_hash, (void*)(intptr_t)pid)) {
hashmap_remove(job_hash, (void*)(intptr_t)pid);
hashmap_remove(desc_hash, (void*)(intptr_t)pid);
}
}
}
}
@ -2213,6 +2223,7 @@ uint32_t shell_cmd_fg(int argc, char * argv[]) {
set_pgrp(pid);
if (kill(-pid, SIGCONT) < 0) {
reset_pgrp();
fprintf(stderr, "no current job / bad pid\n");
if (hashmap_has(job_hash, (void*)(intptr_t)pid)) {
hashmap_remove(job_hash, (void*)(intptr_t)pid);