change identation, maybe will change back, add own gl functions loading, and glx example

1 files changed, 68 insertions, 47 deletions

diff --git a/linux.c b/linux.c
index ff20e92..cfdcf6a 100644
--- a/linux.c
+++ b/linux.c
@@ -1,70 +1,91 @@
 #include "sys.h"
 #include "macros.h"
+#include "prbs.h"
+
 #include <sys/mman.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <unistd.h>
 #include <string.h>
 
-void *sys_alloc(u64 length)
+void
+*sys_alloc(u64 length)
 {
-	assert(length);
-	i32 prot = PROT_READ | PROT_WRITE;
-	i32 flags = MAP_PRIVATE|MAP_ANONYMOUS;
-	void *result = mmap(0, length, prot, flags, -1, 0);
-	return result;
+    assert(length);
+    i32 prot = PROT_READ | PROT_WRITE;
+    i32 flags = MAP_PRIVATE|MAP_ANONYMOUS;
+    void *result = mmap(0, length, prot, flags, -1, 0);
+    return result;
 }
 
-void sys_free(void *memory, u64 length)
+void
+sys_free(void *memory, u64 length)
 {
-	assert(memory);
-	assert(length);
-	munmap(memory, length);
+    assert(memory);
+    assert(length);
+    munmap(memory, length);
 }
 
-void die(const char *format, ...)
+void
+die(const char *format, ...)
 {
-	va_list args;
-	va_start(args, format);
-	fprintf(stderr, "error: ");
-	vfprintf(stderr, format, args);
-	fprintf(stderr, "\n");
-	va_end(args);
-	_exit(1);
+    va_list args;
+    va_start(args, format);
+    fprintf(stderr, "error: ");
+    vfprintf(stderr, format, args);
+    fprintf(stderr, "\n");
+    va_end(args);
+    _exit(1);
 }
 
-void info(const char *format, ...)
+void
+info(const char *format, ...)
 {
-	va_list args;
-	va_start(args, format);
-	vprintf(format, args);
-	putchar('\n');
-	va_end(args);
+    va_list args;
+    va_start(args, format);
+    vprintf(format, args);
+    putchar('\n');
+    va_end(args);
 }
 
-char *read_entire_file(struct arena *arena, u64 *len, const char *filename)
+char *
+read_entire_file(struct arena *arena, u64 *len, const char *filename)
 {
-	FILE *file = fopen(filename, "rb");
-	if (!file)
-		return 0;
-	if (fseek(file, 0, SEEK_END) == -1)
-		goto error;
-	i64 n = ftell(file);
-	if (n <= 0)
-		goto error;
-	if (len)
-		*len = n;
-	if (fseek(file, 0, SEEK_SET) == -1)
-		goto error;
-	char *buffer = push_arena(arena, n + 1);
-	if (!fread(buffer, 1, n, file)) {
-		pop_arena(arena, n + 1);
-		goto error;
-	}
-	fclose(file);
-	buffer[n] = 0;
-	return buffer;
+    FILE *file = fopen(filename, "rb");
+    if (!file)
+        return 0;
+    if (fseek(file, 0, SEEK_END) == -1)
+        goto error;
+    i64 n = ftell(file);
+    if (n <= 0)
+        goto error;
+    if (len)
+        *len = n;
+    if (fseek(file, 0, SEEK_SET) == -1)
+        goto error;
+    char *buffer = push_arena(arena, n + 1);
+    if (!fread(buffer, 1, n, file)) {
+        pop_arena(arena, n + 1);
+        goto error;
+    }
+    fclose(file);
+    buffer[n] = 0;
+    return buffer;
+
 error:
-	fclose(file);
-	return 0;
+    fclose(file);
+    return 0;
+}
+
+struct string
+get_basedir(struct arena *arena)
+{
+    char buf[1024] = {0};
+    if (readlink("/proc/self/exe", buf, 1024 - 1) == -1)
+        die("failed to read link /proc/self/exe");
+    struct arena temp = alloc_arena(0);
+    struct string full = string_from_cstring(&temp, buf);
+    struct string base = push_string(arena, get_dirname(full));
+    release_arena(&temp);
+    return base;
 }