From 1d71fee4c0ba9be181fc48a447b7287754dc9bd1 Mon Sep 17 00:00:00 2001
From: Jari Vetoniemi <mailroxas@gmail.com>
Date: Mon, 23 Jan 2017 11:21:51 +0200
Subject: Move out non function hook code out of hooks.h

Also reorder the code a bit
---
 glcapture.c | 20 ++++++++++++++++++++
 hooks.h     | 42 ++++++++++++++++--------------------------
 2 files changed, 36 insertions(+), 26 deletions(-)

diff --git a/glcapture.c b/glcapture.c
index 2aefb69..8db96fe 100644
--- a/glcapture.c
+++ b/glcapture.c
@@ -103,12 +103,23 @@ struct fifo {
 #define ERRX(x, y, ...) do { errx(x, "glcapture: "y, ##__VA_ARGS__); } while (0)
 #define WARN_ONCE(x, ...) do { static bool o = false; if (!o) { WARNX(x, ##__VA_ARGS__); o = true; } } while (0)
 
+// "entrypoints" exposed to hooks.h
 static void swap_buffers(void);
 static void alsa_writei(snd_pcm_t *pcm, const void *buffer, const snd_pcm_uframes_t size, const char *caller);
+static uint64_t get_fake_time_ns(void);
 
 #include "hooks.h"
 #include "glwrangle.h"
 
+static uint64_t
+get_time_ns(void)
+{
+   struct timespec ts;
+   HOOK(clock_gettime);
+   _clock_gettime(CLOCK_MONOTONIC, &ts);
+   return (uint64_t)ts.tv_sec * (uint64_t)1e9 + (uint64_t)ts.tv_nsec;
+}
+
 static void
 reset_fifo(struct fifo *fifo)
 {
@@ -447,3 +458,12 @@ alsa_writei(snd_pcm_t *pcm, const void *buffer, const snd_pcm_uframes_t size, co
    if (alsa_get_frame_info(pcm, &info, caller))
       write_data(&info, buffer, snd_pcm_frames_to_bytes(pcm, size));
 }
+
+static uint64_t
+get_fake_time_ns(void)
+{
+   static __thread uint64_t base;
+   const uint64_t current = get_time_ns();
+   base = (base ? base : current);
+   return base + (current - base) * SPEED_HACK;
+}
diff --git a/hooks.h b/hooks.h
index a96fcae..b844fcd 100644
--- a/hooks.h
+++ b/hooks.h
@@ -16,15 +16,6 @@ static void hook_function(void**, const char*, const bool);
 
 #define HOOK(x) hook_function((void**)&_##x, #x, false)
 
-static uint64_t
-get_time_ns(void)
-{
-   struct timespec ts;
-   HOOK(clock_gettime);
-   _clock_gettime(CLOCK_MONOTONIC, &ts);
-   return (uint64_t)ts.tv_sec * (uint64_t)1e9 + (uint64_t)ts.tv_nsec;
-}
-
 EGLBoolean
 eglSwapBuffers(EGLDisplay dpy, EGLSurface surface)
 {
@@ -100,10 +91,7 @@ clock_gettime(clockid_t clk_id, struct timespec *tp)
    HOOK(clock_gettime);
 
    if ((clk_id == CLOCK_MONOTONIC || clk_id == CLOCK_MONOTONIC_RAW)) {
-      static __thread uint64_t base;
-      const uint64_t current = get_time_ns();
-      if (!base) base = current;
-      const uint64_t fake = base + (current - base) * SPEED_HACK;
+      const uint64_t fake = get_fake_time_ns();
       tp->tv_sec = fake / (uint64_t)1e9;
       tp->tv_nsec = (fake % (uint64_t)1e9);
       return 0;
@@ -112,19 +100,6 @@ clock_gettime(clockid_t clk_id, struct timespec *tp)
    return _clock_gettime(clk_id, tp);
 }
 
-#define HOOK_DLSYM(x) hook_function((void**)&_##x, #x, true)
-
-void*
-dlsym(void *handle, const char *symbol)
-{
-   HOOK_DLSYM(dlsym);
-
-   if (!strcmp(symbol, "dlsym"))
-      return dlsym;
-
-   return store_real_symbol_and_return_fake_symbol(symbol, _dlsym(handle, symbol));
-}
-
 static void*
 store_real_symbol_and_return_fake_symbol(const char *symbol, void *ret)
 {
@@ -150,6 +125,8 @@ store_real_symbol_and_return_fake_symbol(const char *symbol, void *ret)
    return ret;
 }
 
+#define HOOK_DLSYM(x) hook_function((void**)&_##x, #x, true)
+
 static void
 hook_function(void **ptr, const char *name, const bool versioned)
 {
@@ -170,3 +147,16 @@ hook_function(void **ptr, const char *name, const bool versioned)
 
    WARNX("HOOK %s", name);
 }
+
+void*
+dlsym(void *handle, const char *symbol)
+{
+   HOOK_DLSYM(dlsym);
+
+   if (!strcmp(symbol, "dlsym"))
+      return dlsym;
+
+   return store_real_symbol_and_return_fake_symbol(symbol, _dlsym(handle, symbol));
+}
+
+#undef HOOK_DLSYM
-- 
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