fixed arena + some niceties

colla.h

@@ -1,37 +1,24 @@
 #ifndef COLLA_HEADER
 #define COLLA_HEADER
 
-#if defined(_WIN32)
-    #define COLLA_WIN 1
-    #define COLLA_OSX 0
-    #define COLLA_LIN 0
-    #define COLLA_EMC 0
-#elif defined(__EMSCRIPTEN__)
-    #define COLLA_WIN 0
-    #define COLLA_OSX 0
-    #define COLLA_LIN 0
-    #define COLLA_EMC 1
-#elif defined(__linux__)
-    #define COLLA_WIN 0
-    #define COLLA_OSX 0
-    #define COLLA_LIN 1
-    #define COLLA_EMC 0
-#elif defined(__APPLE__)
-    #define COLLA_WIN 0
-    #define COLLA_OSX 1
-    #define COLLA_LIN 0
-    #define COLLA_EMC 0
-#endif
-
-#if COLLA_LIN
-    #define _FILE_OFFSET_BITS 1
-#endif
-
 #include <stdint.h>
 #include <stddef.h>
 #include <stdbool.h>
 #include <stdarg.h>
-#include <uchar.h>
+
+// when where compiling with tcc, we need to do a couple things outselves
+#ifdef __TINYC__
+    typedef unsigned short char16_t;
+    // NOT SAFE, afaik tcc doesn't support thread_local
+    #ifndef thread_local
+        #define thread_local 
+    #endif
+#else
+    #include <uchar.h>
+    #ifndef thread_local
+        #define thread_local _Thread_local
+    #endif
+#endif
 
 // LIBC FUNCTIONS ///////////////////////////////
 
@@ -72,6 +59,28 @@ void colla_cleanup(void);
     #define COLLA_RELEASE 1
 #endif
 
+#if defined(_WIN32)
+    #define COLLA_WIN 1
+    #define COLLA_OSX 0
+    #define COLLA_LIN 0
+    #define COLLA_EMC 0
+#elif defined(__EMSCRIPTEN__)
+    #define COLLA_WIN 0
+    #define COLLA_OSX 0
+    #define COLLA_LIN 0
+    #define COLLA_EMC 1
+#elif defined(__linux__)
+    #define COLLA_WIN 0
+    #define COLLA_OSX 0
+    #define COLLA_LIN 1
+    #define COLLA_EMC 0
+#elif defined(__APPLE__)
+    #define COLLA_WIN 0
+    #define COLLA_OSX 1
+    #define COLLA_LIN 0
+    #define COLLA_EMC 0
+#endif
+
 #if defined(__COSMOPOLITAN__)
     #define COLLA_COSMO 1
 #else
@@ -536,6 +545,7 @@ strview_t istr_get_view(instream_t *ctx, char delim);
 strview_t istr_get_view_either(instream_t *ctx, strview_t chars);
 strview_t istr_get_view_len(instream_t *ctx, usize len);
 strview_t istr_get_line(instream_t *ctx);
+strview_t istr_get_word(instream_t *ctx);
 
 // OUTPUT STREAM ////////////////////////////////
 
@@ -554,6 +564,7 @@ char ostr_back(outstream_t *ctx);
 str_t ostr_to_str(outstream_t *ctx);
 strview_t ostr_as_view(outstream_t *ctx);
 
+void ostr_rewind(outstream_t *ctx, usize from_beg);
 void ostr_pop(outstream_t *ctx, usize count);
 
 void ostr_print(outstream_t *ctx, const char *fmt, ...);
@@ -798,6 +809,8 @@ typedef enum {
     OS_LOG_SIMPLE          = OS_LOG_NOTIME | OS_LOG_NOFILE,
 } os_log_options_e;
 
+void os_log_set_options(os_log_options_e opt);
+os_log_options_e os_log_get_options(void);
 void os_log_add_callback(log_callback_t cb);
 void os_log_add_fp(oshandle_t fp, os_log_level_e level);
 void os_log_print(const char *file, int line, os_log_level_e level, const char *fmt, ...);
@@ -808,6 +821,10 @@ void os_log_set_colour_bg(os_log_colour_e foreground, os_log_colour_e background
 oshandle_t os_stdout(void);
 oshandle_t os_stdin(void);
 
+// windows specific
+oshandle_t os_win_conout(void);
+oshandle_t os_win_conin(void);
+
 #define print(...)   fmt_print(__VA_ARGS__)
 #define println(...) os_log_print(__FILE__, __LINE__, LOG_BASIC, __VA_ARGS__)
 #define debug(...)   os_log_print(__FILE__, __LINE__, LOG_DEBUG, __VA_ARGS__)
@@ -823,6 +840,8 @@ typedef enum filemode_e {
     OS_FILE_WRITE = 1 << 1,
 } filemode_e;
 
+str_t os_path_join(arena_t *arena, strview_t left, strview_t right);
+
 bool os_file_exists(strview_t filename);
 bool os_dir_exists(strview_t folder);
 bool os_file_or_dir_exists(strview_t path);
@@ -927,6 +946,22 @@ usize os_pad_to_page(usize byte_count);
 
 // == THREAD ====================================
 
+#ifndef thread_local
+    #define thread_local _Thread_local
+#endif
+
+typedef struct os_barrier_t os_barrier_t;
+struct os_barrier_t {
+    i64 thread_count;
+    i64 thread_value;
+    i64 has_completed;
+};
+
+extern thread_local i64 os_thread_id;
+extern i64 os_thread_count;
+
+void os_barrier_sync(os_barrier_t *b);
+
 typedef int (thread_func_t)(u64 thread_id, void *userdata);
 
 oshandle_t os_thread_launch(thread_func_t func, void *userdata);
@@ -935,6 +970,14 @@ bool os_thread_join(oshandle_t thread, int *code);
 
 u64 os_thread_get_id(oshandle_t thread);
 
+typedef struct i64range_t i64range_t;
+struct i64range_t {
+    i64 min;
+    i64 max;
+};
+
+i64range_t os_lane_range(u64 values_count);
+
 // == MUTEX =====================================
 
 oshandle_t os_mutex_create(void);
@@ -976,6 +1019,7 @@ struct job_queue_t {
     oshandle_t mutex;
     oshandle_t condvar;
     oshandle_t *threads;
+    i64 *thread_ids;
     int thread_count;
 };
 
@@ -989,6 +1033,18 @@ job_t *jq_pop_job(job_queue_t *queue);
 
 #endif
 
+// == ATOMICS ========================================
+
+i64 atomic_set_i64(i64 *dest, i64 val);
+i64 atomic_add_i64(i64 *dest, i64 val);
+i64 atomic_and_i64(i64 *dest, i64 val);
+// if (*dest == cmp) *dest = val
+i64 atomic_cmp_i64(i64 *dest, i64 val, i64 cmp);
+i64 atomic_inc_i64(i64 *dest);
+i64 atomic_dec_i64(i64 *dest);
+i64 atomic_or_i64(i64 *dest, i64 val);
+i64 atomic_xor_i64(i64 *dest, i64 val);
+
 // PARSERS //////////////////////////////////////
 
 // == INI ============================================