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C examples updated to the latest libipc API.

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This commit is contained in:
Philippe Pittoli 2025-10-17 23:39:34 +02:00
parent 4ba5aa93f3
commit fba7b11cbe
4 changed files with 34 additions and 5 deletions
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27
c/README.md
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@ -1,4 +1,5 @@
[LibIPC][libipc] C examples: `pong` and `pongd` (simple service and its client, just echoing received messages).
[LibIPC][libipc] C examples: `pong` and `pongd` (simple service and its
client, just echoing received messages).
Implementations are straightforward.
## Build
@ -14,10 +15,30 @@ make STATIC=1 # Build static executables.
## Usage
```sh
./zig-out/bin/pongd # run the service
./zig-out/bin/pong # run the client
./pongd # run the service
./pong # run the client
```
# Using `pong` and `pongd` as debug tools for libipc
In case you want to use your own version of libipc, first compile your
libipc with `--release=fast` or `--release=small` optimization flags
(as these options remove some zig-related code in the final binary),
then you can compile these tools as is:
```sh
make STATIC=1 LDFLAGS=/path/to/your/libipc.a
```
Then you can run the applications with valgrind if you want:
```sh
make USE_VALGRIND=1 run-server
make USE_VALGRIND=1 run-client
```
See the makefiles in `../mk/` for additional options.
## LICENSE
ISC

6
c/makefile
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@ -15,6 +15,12 @@ build: $(BINS)
$(BINS):
$(CC) -o $@ $@.c $(CFLAGS) $(LDFLAGS)
run-server:
$(VALGRIND) ./pongd
run-client:
$(VALGRIND) ./pong
clean:
rm $(BINS) 2>/dev/null

3
c/pong.c
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@ -58,7 +58,8 @@ int main(void) {
size_t count = 0;
while(should_continue) {
size = MAX_MSG_SIZE;
ret = ipc_wait_event (ctx, &event_type, &index, &originfd, message, &size);
int newfd;
ret = ipc_wait_event (ctx, &event_type, &index, &originfd, &newfd, message, &size);
if (ret != 0) {
return err(ctx, "Error while waiting for an event.");
}

3
c/pongd.c
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@ -56,7 +56,8 @@ int main(int argc, char**argv) {
size_t count_timer = 0;
while(should_continue) {
size = MAX_MSG_SIZE;
ret = ipc_wait_event (ctx, &event_type, &index, &originfd, message, &size);
int newfd;
ret = ipc_wait_event (ctx, &event_type, &index, &originfd, &newfd, message, &size);
if (ret != 0) {
return err (ctx, "Error while waiting for an event.");
}