8:44 p.m.
Cache the result code as last_result from at command callback. And
flush out the last result code when the whole command line is parsed,
except the last result is an extended error code, like +CMS ERROR or
+CME ERROR.
---
gatchat/gatserver.c | 55 ++++++++++++++++++++++++++++++++++++--------------
1 files changed, 39 insertions(+), 16 deletions(-)
diff --git a/gatchat/gatserver.c b/gatchat/gatserver.c
index 9683fa3..b4f7563 100644
--- a/gatchat/gatserver.c
+++ b/gatchat/gatserver.c
@@ -33,6 +33,8 @@
#include "gatserver.h"
#define BUF_SIZE 4096
+/* <cr><lf> + the max length of information text + <cr><lf> */
+#define MAX_TEXT_SIZE 2048+4
/* #define WRITE_SCHEDULER_DEBUG 1 */
enum ParserState {
@@ -112,6 +114,7 @@ struct _GAtServer {
guint max_read_attempts; /* Max reads per select */
enum ParserState parser_state;
gboolean destroyed; /* Re-entrancy guard */
+ GAtServerResult last_result; /* Result of last command */
};
static void g_at_server_wakeup_writer(GAtServer *server);
@@ -156,35 +159,52 @@ static void send_common(GAtServer *server, const char *buf, unsigned
int len)
g_at_server_wakeup_writer(server);
}
-static void g_at_server_send_final(GAtServer *server, GAtServerResult result)
+static void send_result_common(GAtServer *server, const char *result)
{
- struct v250_settings v250 = server->v250;
- const char *result_str = server_result_to_string(result);
- char buf[1024];
- char t = v250.s3;
- char r = v250.s4;
+ char buf[MAX_TEXT_SIZE];
+ char t = server->v250.s3;
+ char r = server->v250.s4;
unsigned int len;
- /* Do not emit error if extended error has already been emitted */
- if (result == G_AT_SERVER_RESULT_EXT_ERROR)
- return;
-
- if (v250.quiet)
+ if (server->v250.quiet)
return;
- if (result_str == NULL)
+ if (result == NULL)
return;
- if (v250.is_v1)
- len = snprintf(buf, sizeof(buf), "%c%c%s%c%c", t, r, result_str,
+ if (server->v250.is_v1)
+ len = snprintf(buf, sizeof(buf), "%c%c%s%c%c", t, r, result,
t, r);
else
- len = snprintf(buf, sizeof(buf), "%u%c", (unsigned int) result,
- t);
+ len = snprintf(buf, sizeof(buf), "%s%c", result, t);
send_common(server, buf, MIN(len, sizeof(buf)-1));
}
+static void g_at_server_send_flush(GAtServer *server)
+{
+ GAtServerResult result = server->last_result;
+ char buf[1024];
+
+ /* Do not emit error if extended error has already been emitted */
+ if (result == G_AT_SERVER_RESULT_EXT_ERROR)
+ return;
+
+ if (server->v250.is_v1)
+ sprintf(buf, "%s", server_result_to_string(result));
+ else
+ sprintf(buf, "%u", (unsigned int)result);
+
+ send_result_common(server, buf);
+}
+
+static inline void g_at_server_send_final(GAtServer *server,
+ GAtServerResult result)
+{
+ /* Cache the result until the whole command line is parsed */
+ server->last_result = result;
+}
+
static inline gboolean is_extended_command_prefix(const char c)
{
switch (c) {
@@ -633,16 +653,19 @@ static void new_bytes(GAtServer *p)
* Empty commands must be OK by the DCE
*/
g_at_server_send_final(p, G_AT_SERVER_RESULT_OK);
+ g_at_server_send_flush(p);
ring_buffer_drain(p->read_buf, p->read_so_far);
break;
case PARSER_RESULT_COMMAND:
server_parse_line(p, extract_line(p));
+ g_at_server_send_flush(p);
break;
case PARSER_RESULT_REPEAT_LAST:
/* TODO */
g_at_server_send_final(p, G_AT_SERVER_RESULT_OK);
+ g_at_server_send_flush(p);
ring_buffer_drain(p->read_buf, p->read_so_far);
break;
--
1.6.6.1