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Make "adb get-serialno" interruptible

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All process executions must be interruptible, so that Ctrl+c reacts
immediately.
This commit is contained in:
Romain Vimont 2021-11-17 18:47:20 +01:00
parent ea454e9cee
commit 0426ae885c
3 changed files with 34 additions and 36 deletions
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35
app/src/adb.c
View file

@ -233,37 +233,8 @@ adb_install(const char *serial, const char *local) {
return pid;
}
static ssize_t
adb_execute_for_output(const char *serial, const char *const adb_cmd[],
size_t adb_cmd_len, char *buf, size_t buf_len,
const char *name) {
sc_pipe pout;
sc_pid pid = adb_execute_p(serial, adb_cmd, adb_cmd_len, NULL, &pout, NULL);
if (pid == SC_PROCESS_NONE) {
return -1;
}
ssize_t r = sc_pipe_read_all(pout, buf, buf_len);
sc_pipe_close(pout);
if (!sc_process_check_success(pid, name, true)) {
return -1;
}
return r;
}
char *
adb_get_serialno(void) {
char buf[128];
sc_pid
adb_get_serialno(sc_pipe *pout) {
const char *const adb_cmd[] = {"get-serialno"};
ssize_t r = adb_execute_for_output(NULL, adb_cmd, ARRAY_LEN(adb_cmd),
buf, sizeof(buf), "get-serialno");
if (r <= 0) {
return NULL;
}
sc_str_truncate(buf, r, "\r\n");
return strdup(buf);
return adb_execute_p(NULL, adb_cmd, ARRAY_LEN(adb_cmd), NULL, pout, NULL);
}

10
app/src/adb.h
View file

@ -35,8 +35,12 @@ adb_push(const char *serial, const char *local, const char *remote);
sc_pid
adb_install(const char *serial, const char *local);
// Return the result of "adb get-serialno".
char *
adb_get_serialno(void);
/**
* Execute `adb get-serialno`
*
* The result can be read from the output parameter `pout`.
*/
sc_pid
adb_get_serialno(sc_pipe *pout);
#endif

25
app/src/server.c
View file

@ -422,6 +422,29 @@ sc_server_on_terminated(void *userdata) {
LOGD("Server terminated");
}
static char *
sc_server_get_serialno(struct sc_intr *intr) {
sc_pipe pout;
sc_pid pid = adb_get_serialno(&pout);
if (pid == SC_PROCESS_NONE) {
return false;
}
char buf[128];
ssize_t r = sc_pipe_read_all_intr(intr, pid, pout, buf, sizeof(buf));
sc_pipe_close(pout);
bool ok =
sc_process_check_success_intr(intr, pid, "adb get-serialno", true);
if (!ok) {
return NULL;
}
sc_str_truncate(buf, r, " \r\n");
return strdup(buf);
}
static bool
sc_server_fill_serial(struct sc_server *server) {
// Retrieve the actual device immediately if not provided, so that all
@ -430,7 +453,7 @@ sc_server_fill_serial(struct sc_server *server) {
// device/emulator" error)
if (!server->params.serial) {
// The serial is owned by sc_server_params, and will be freed on destroy
server->params.serial = adb_get_serialno();
server->params.serial = sc_server_get_serialno(&server->intr);
if (!server->params.serial) {
LOGE("Could not get device serial");
return false;