Mesa (glsl2): talloc: Make it compile with MSVC, MinGW, and Xcode/gcc4.0.

[Ian Romanick]

Module: Mesa
Branch: glsl2
Commit: 1ca2945f84e9cb298a7d4ad4ec9a0578097c146d
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=1ca2945f84e9cb298a7d4ad4ec9a0578097c146d

Author: José Fonseca <jfonseca at vmware.com>
Date:   Fri Aug 13 13:53:04 2010 +0100

talloc: Make it compile with MSVC, MinGW, and Xcode/gcc4.0.

Based on Aras Pranckevičius' patch.

---

 src/SConscript        |    3 ++
 src/talloc/SConscript |   20 +++++++++++++++
 src/talloc/talloc.c   |   46 +++++++++++++++++++++++++++++++++--
 src/talloc/talloc.def |   63 +++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 129 insertions(+), 3 deletions(-)

diff --git a/src/SConscript b/src/SConscript
index 2b46186..c3e34be 100644
--- a/src/SConscript
+++ b/src/SConscript
@@ -5,6 +5,9 @@ if 'egl' in env['statetrackers']:
     SConscript('egl/main/SConscript')
 
 if 'mesa' in env['statetrackers']:
+    if platform == 'windows':
+        SConscript('talloc/SConscript')
+
     SConscript('glsl/SConscript')
     SConscript('mapi/glapi/SConscript')
     SConscript('mesa/SConscript')
diff --git a/src/talloc/SConscript b/src/talloc/SConscript
new file mode 100644
index 0000000..a4861a9
--- /dev/null
+++ b/src/talloc/SConscript
@@ -0,0 +1,20 @@
+Import('*')
+
+if env['platform'] != 'windows':
+    Return()
+
+env = env.Clone()
+
+talloc = env.SharedLibrary(
+    target = 'talloc',
+    source = ['talloc.c', 'talloc.def'],
+)
+
+env.InstallSharedLibrary(talloc)
+
+if env['platform'] != 'windows':
+    talloc = env.FindIxes(talloc, 'LIBPREFIX', 'LIBSUFFIX')
+else:
+    talloc = env.FindIxes(talloc, 'SHLIBPREFIX', 'SHLIBSUFFIX')
+
+Export('talloc')
diff --git a/src/talloc/talloc.c b/src/talloc/talloc.c
index 7beda4b..cc01346 100644
--- a/src/talloc/talloc.c
+++ b/src/talloc/talloc.c
@@ -30,8 +30,38 @@
   inspired by http://swapped.cc/halloc/
 */
 
-#include "replace.h"
 #include "talloc.h"
+#include <string.h>
+
+#define TALLOC_MIN(a,b) ((a)<(b)?(a):(b))
+
+/* Visual C++ 2008 compatibility */
+#if defined(_MSC_VER) && !defined(_cplusplus)
+typedef size_t ssize_t;
+#define inline __inline
+#endif
+
+/* Xcode/gcc4.0 compatibility */
+#if defined(__APPLE__) || defined(__MINGW32__)
+static size_t strnlen (const char* s, size_t n)
+{
+	size_t i;
+	for (i = 0; i < n; ++i)
+	{
+		if (s[i] == '\0')
+			break;
+	}
+	return i;
+}
+#endif
+
+/* Visual C++ 2008 & Xcode/gcc4.0 compatibility */
+#if !defined(_cplusplus) && (defined(WIN32) || defined(__APPLE__))
+typedef int bool;
+#define false 0
+#define true 1
+#endif
+
 
 #ifdef TALLOC_BUILD_VERSION_MAJOR
 #if (TALLOC_VERSION_MAJOR != TALLOC_BUILD_VERSION_MAJOR)
@@ -1200,7 +1230,7 @@ void *_talloc_realloc(const void *context, void *ptr, size_t size, const char *n
 		}
 
 		if (new_ptr) {
-			memcpy(new_ptr, tc, MIN(tc->size,size) + TC_HDR_SIZE);
+			memcpy(new_ptr, tc, TALLOC_MIN(tc->size,size) + TC_HDR_SIZE);
 		}
 	}
 	else {
@@ -1686,7 +1716,7 @@ char *talloc_strndup_append_buffer(char *s, const char *a, size_t n)
 	return __talloc_strlendup_append(s, slen, a, strnlen(a, n));
 }
 
-#ifndef HAVE_VA_COPY
+#ifndef va_copy
 #ifdef HAVE___VA_COPY
 #define va_copy(dest, src) __va_copy(dest, src)
 #else
@@ -1703,7 +1733,12 @@ char *talloc_vasprintf(const void *t, const char *fmt, va_list ap)
 
 	/* this call looks strange, but it makes it work on older solaris boxes */
 	va_copy(ap2, ap);
+	#ifdef _MSC_VER
+	/* MSVC runtime needs to use _vcsprintf to return buffer size; vsnprintf would return -1 */
+	len = _vscprintf(fmt, ap2);
+	#else
 	len = vsnprintf(&c, 1, fmt, ap2);
+	#endif
 	va_end(ap2);
 	if (unlikely(len < 0)) {
 		return NULL;
@@ -1748,7 +1783,12 @@ static inline char *__talloc_vaslenprintf_append(char *s, size_t slen,
 	char c;
 
 	va_copy(ap2, ap);
+	#ifdef _MSC_VER
+	/* MSVC runtime needs to use _vcsprintf to return buffer size; vsnprintf would return -1 */
+	alen = _vscprintf(fmt, ap2);
+	#else
 	alen = vsnprintf(&c, 1, fmt, ap2);
+	#endif
 	va_end(ap2);
 
 	if (alen <= 0) {
diff --git a/src/talloc/talloc.def b/src/talloc/talloc.def
new file mode 100644
index 0000000..13d7a15
--- /dev/null
+++ b/src/talloc/talloc.def
@@ -0,0 +1,63 @@
+EXPORTS
+	_talloc
+	_talloc_array
+	_talloc_free
+	_talloc_get_type_abort
+	_talloc_memdup
+	_talloc_move
+	_talloc_realloc
+	_talloc_realloc_array
+	_talloc_reference_loc
+	_talloc_set_destructor
+	_talloc_steal_loc
+	_talloc_zero
+	_talloc_zero_array
+	talloc_asprintf
+	talloc_asprintf_append
+	talloc_asprintf_append_buffer
+	talloc_autofree_context
+	talloc_check_name
+	talloc_disable_null_tracking
+	talloc_enable_leak_report
+	talloc_enable_leak_report_full
+	talloc_enable_null_tracking
+	talloc_enable_null_tracking_no_autofree
+	talloc_find_parent_byname
+	talloc_free_children
+	talloc_get_name
+	talloc_get_size
+	talloc_increase_ref_count
+	talloc_init
+	talloc_is_parent
+	talloc_named
+	talloc_named_const
+	talloc_parent
+	talloc_parent_name
+	talloc_pool
+	talloc_realloc_fn
+	talloc_reference_count
+	talloc_reparent
+	talloc_report
+	talloc_report_depth_cb
+	talloc_report_depth_file
+	talloc_report_full
+	talloc_set_abort_fn
+	talloc_set_log_fn
+	talloc_set_log_stderr
+	talloc_set_name
+	talloc_set_name_const
+	talloc_show_parents
+	talloc_strdup
+	talloc_strdup_append
+	talloc_strdup_append_buffer
+	talloc_strndup
+	talloc_strndup_append
+	talloc_strndup_append_buffer
+	talloc_total_blocks
+	talloc_total_size
+	talloc_unlink
+	talloc_vasprintf
+	talloc_vasprintf_append
+	talloc_vasprintf_append_buffer
+	talloc_version_major
+	talloc_version_minor