From 93bf289d04b1f029787f51824fbc42136a8285b0 Mon Sep 17 00:00:00 2001
From: Mitya Selivanov <automainint@guattari.tech>
Date: Fri, 15 Sep 2023 02:02:57 +0200
Subject: shared_memory posix impl

---
 source/tests/test_interprocess.c | 121 +++++++++++++++------------------------
 1 file changed, 45 insertions(+), 76 deletions(-)

(limited to 'source/tests')

diff --git a/source/tests/test_interprocess.c b/source/tests/test_interprocess.c
index df2a375..30a8779 100644
--- a/source/tests/test_interprocess.c
+++ b/source/tests/test_interprocess.c
@@ -1,90 +1,60 @@
+#include "../kit/shared_memory.h"
+#include "../kit/threads.h"
+
+#include <stdio.h>
+
 #ifdef _WIN32
 int main() {
   return 0;
 }
 #else
-#  include "../kit/threads.h"
+#  define NAME "kit_test_interprocess"
 
-#  include <stdio.h>
-#  include <string.h>
-#  include <sys/mman.h>
-#  include <sys/stat.h>
-#  include <fcntl.h>
-#  include <unistd.h>
-
-#  define NAME "/kit_test_interprocess"
+enum { SIZE = 64 };
 
 enum { STATE_INIT, STATE_READY, STATE_DONE };
 
-enum { SIZE = 64 };
-
 int run_writer() {
-  int f = shm_open(NAME, O_RDWR | O_CREAT, 0660);
+  kit_shared_memory_t mem = kit_shared_memory_create(SZ(NAME), SIZE);
 
-  if (f == -1) {
-    printf("%s: shm_open failed.\n", __FUNCTION__);
-    return 1;
-  }
-
-  if (ftruncate(f, SIZE) == -1) {
-    printf("%s: ftruncate failed.\n", __FUNCTION__);
+  if (mem.status != KIT_OK) {
+    printf("%s: kit_shared_memory_create failed.\n", __FUNCTION__);
     fflush(stdout);
-    return 1;
-  }
-
-  void *p = mmap(NULL, SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, f,
-                 0);
-
-  if (p == MAP_FAILED) {
-    printf("%s: mmap failed.\n", __FUNCTION__);
-    fflush(stdout);
-    return 1;
+    return mem.status;
   }
 
-  unsigned char *bytes = (unsigned char *) p;
+  mem.bytes[0] = STATE_INIT;
+  for (int i = 1; i < SIZE; i++) mem.bytes[i] = i;
+  mem.bytes[0] = STATE_READY;
 
-  bytes[0] = STATE_INIT;
-  for (int i = 1; i < SIZE; i++) bytes[i] = i;
-  bytes[0] = STATE_READY;
+  while (mem.bytes[0] != STATE_DONE) thrd_yield();
 
-  while (bytes[0] != STATE_DONE) thrd_yield();
-
-  shm_unlink(NAME);
-
-  return 0;
+  return kit_shared_memory_close(&mem);
 }
 
 int run_reader() {
-  int f = -1;
-
-  while (f == -1) {
-    f = shm_open(NAME, O_RDWR, 0);
-    thrd_yield();
-  }
-
-  void *p = mmap(NULL, SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, f,
-                 0);
+  kit_shared_memory_t mem = kit_shared_memory_open(SZ(NAME), SIZE);
 
-  if (p == MAP_FAILED) {
-    printf("%s: mmap failed.\n", __FUNCTION__);
+  if (mem.status != KIT_OK) {
+    printf("%s: kit_shared_memory_open failed.\n", __FUNCTION__);
     fflush(stdout);
-    return 1;
+    return mem.status;
   }
 
-  unsigned char *bytes = (unsigned char *) p;
-
-  while (bytes[0] != STATE_READY) thrd_yield();
+  while (mem.bytes[0] != STATE_READY) thrd_yield();
 
-  int status = 0;
+  i32 status = 0;
 
-  for (int i = 1; i < SIZE; i++)
-    if (bytes[i] != i) {
+  for (i32 i = 1; i < SIZE; i++)
+    if (mem.bytes[i] != i) {
       printf("%s: wrong byte %d\n", __FUNCTION__, i);
       fflush(stdout);
       status = 1;
     }
 
-  bytes[0] = STATE_DONE;
+  mem.bytes[0] = STATE_DONE;
+
+  status |= kit_shared_memory_close(&mem);
 
   return status;
 }
@@ -95,30 +65,29 @@ int main(int argc, char **argv) {
     return 1;
   }
 
-  int status = 0;
+  if (strcmp(argv[1], "writer") == 0) {
+    struct timespec t0;
+    timespec_get(&t0, TIME_UTC);
 
-  struct timespec t0;
-  timespec_get(&t0, TIME_UTC);
+    i32 status = run_writer();
 
-  if (strcmp(argv[1], "writer") == 0)
-    status = run_writer();
-  else if (strcmp(argv[1], "reader") == 0)
-    status = run_reader();
-  else {
-    printf("Invalid command line argument \"%s\"\n", argv[1]);
-    return 1;
-  }
+    struct timespec t1;
+    timespec_get(&t1, TIME_UTC);
 
-  struct timespec t1;
-  timespec_get(&t1, TIME_UTC);
+    i64 sec  = t1.tv_sec - t0.tv_sec;
+    i64 nsec = t1.tv_nsec - t0.tv_nsec;
 
-  long long sec  = t1.tv_sec - t0.tv_sec;
-  long long nsec = t1.tv_nsec - t0.tv_nsec;
+    printf("Done in %.2lf msec\n",
+           (sec * 1000000000 + nsec) * 0.000001);
+    fflush(stdout);
 
-  printf("%s: done in %.2lf msec\n", argv[1],
-         (sec * 1000000000 + nsec) * 0.000001);
-  fflush(stdout);
+    return status;
+  }
 
-  return status;
+  if (strcmp(argv[1], "reader") == 0)
+    return run_reader();
+
+  printf("Invalid command line argument \"%s\"\n", argv[1]);
+  return 1;
 }
 #endif
-- 
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