windows?

1 files changed, 69 insertions, 0 deletions

diff --git a/prb_linux.h b/prb_linux.h
new file mode 100644
index 0000000..3acc229
--- /dev/null
+++ b/prb_linux.h
@@ -0,0 +1,69 @@
+#include <sys/mman.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+
+void *sys_alloc(u64 length)
+{
+	assert(length);
+	void *result = mmap(0, length, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+	return result;
+}
+
+void sys_free(void *memory, u64 length)
+{
+	assert(memory);
+	assert(length);
+	munmap(memory, length);
+}
+
+u64 sys_read_file(arena_t *arena, char **buffer, const char *filename)
+{
+	FILE *file = fopen(filename, "rb");
+	if (!file)
+		return 0;
+
+	if (fseek(file, 0, SEEK_END) == -1)
+		goto error;
+	long len = ftell(file);
+	if (!len || (len == -1))
+		goto error;
+	if (fseek(file, 0, SEEK_SET) == -1)
+		goto error;
+
+	*buffer = push_arena(arena, len + 1);
+	if (!fread(*buffer, 1, len, file)) {
+		pop_arena(arena, len + 1);
+		*buffer = 0;
+		goto error;
+	}
+	(*buffer)[len] = 0;
+	fclose(file);
+
+	return len;
+error:
+	fclose(file);
+	*buffer = 0;
+	return 0;
+}
+
+char *sys_getbindir(arena_t *arena)
+{
+	char path[MAX_PATH];
+	i64 len = readlink("/proc/self/exe", path, MAX_PATH - 1);
+	if (len <= 0)
+		return 0;
+
+	path[len] = 0;
+
+	char *dir = strrchr(path, '/');
+	assert(dir);
+	assert(dir > path);
+
+	len = dir - path;
+	dir = push_arena(arena, len + 1);
+	prb_memmove(dir, path, len);
+	dir[len] = 0;
+
+	return dir;
+}