X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fgallium%2Fauxiliary%2Futil%2Fu_string.h;h=9765aaa0140c02c38a2bc4a06eded8aa9948cdc0;hb=b4b1dcb2c152519648a52ce415dc702d8c0bc7a6;hp=2fede229d9122e465c7b3a14aad22abbc27cf1c9;hpb=09e6be9b5782870f1f225653687e0d3e7be2a5a9;p=mesa.git

diff --git a/src/gallium/auxiliary/util/u_string.h b/src/gallium/auxiliary/util/u_string.h
index 2fede229d91..9765aaa0140 100644
--- a/src/gallium/auxiliary/util/u_string.h
+++ b/src/gallium/auxiliary/util/u_string.h
@@ -1,6 +1,6 @@
 /**************************************************************************
  *
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2008 VMware, Inc.
  * All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -18,7 +18,7 @@
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
@@ -28,33 +28,81 @@
 /**
  * @file
  * Platform independent functions for string manipulation.
- * 
- * @author Jose Fonseca <jrfonseca@tungstengraphics.com>
+ *
+ * @author Jose Fonseca <jfonseca@vmware.com>
  */
 
 #ifndef U_STRING_H_
 #define U_STRING_H_
 
-#ifndef WIN32
+#if !defined(XF86_LIBC_H)
 #include <stdio.h>
 #endif
 #include <stddef.h>
 #include <stdarg.h>
 
 #include "pipe/p_compiler.h"
+#include "util/macros.h" // PRINTFLIKE
 
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-   
-#ifdef WIN32
-   
-int util_vsnprintf(char *, size_t, const char *, va_list);
-int util_snprintf(char *str, size_t size, const char *format, ...);
+#ifdef _GNU_SOURCE
+
+#define util_strchrnul strchrnul
+
+#else
+
+static inline char *
+util_strchrnul(const char *s, char c)
+{
+   for (; *s && *s != c; ++s);
+
+   return (char *)s;
+}
+
+#endif
+
+#ifdef _WIN32
+
+static inline int
+util_vsnprintf(char *str, size_t size, const char *format, va_list ap)
+{
+   /* We need to use _vscprintf to calculate the length as vsnprintf returns -1
+    * if the number of characters to write is greater than count.
+    */
+   va_list ap_copy;
+   int ret;
+   va_copy(ap_copy, ap);
+   ret = _vsnprintf(str, size, format, ap);
+   if (ret < 0) {
+      ret = _vscprintf(format, ap_copy);
+   }
+   return ret;
+}
+
+static inline int
+   PRINTFLIKE(3, 4)
+util_snprintf(char *str, size_t size, const char *format, ...)
+{
+   va_list ap;
+   int ret;
+   va_start(ap, format);
+   ret = util_vsnprintf(str, size, format, ap);
+   va_end(ap);
+   return ret;
+}
 
-static INLINE void 
+static inline void
+util_vsprintf(char *str, const char *format, va_list ap)
+{
+   util_vsnprintf(str, (size_t)-1, format, ap);
+}
+
+static inline void
+   PRINTFLIKE(2, 3)
 util_sprintf(char *str, const char *format, ...)
 {
    va_list ap;
@@ -63,18 +111,15 @@ util_sprintf(char *str, const char *format, ...)
    va_end(ap);
 }
 
-static INLINE char *
+static inline char *
 util_strchr(const char *s, char c)
 {
-   while(*s) {
-      if(*s == c)
-	 return (char *)s;
-      ++s;
-   }
-   return NULL;
+   char *p = util_strchrnul(s, c);
+
+   return *p ? p : NULL;
 }
 
-static INLINE char*
+static inline char*
 util_strncat(char *dst, const char *src, size_t n)
 {
    char *p = dst + strlen(dst);
@@ -88,7 +133,7 @@ util_strncat(char *dst, const char *src, size_t n)
    return dst;
 }
 
-static INLINE int
+static inline int
 util_strcmp(const char *s1, const char *s2)
 {
    unsigned char u1, u2;
@@ -104,7 +149,7 @@ util_strcmp(const char *s1, const char *s2)
    return 0;
 }
 
-static INLINE int
+static inline int
 util_strncmp(const char *s1, const char *s2, size_t n)
 {
    unsigned char u1, u2;
@@ -120,11 +165,11 @@ util_strncmp(const char *s1, const char *s2, size_t n)
    return 0;
 }
 
-static INLINE char *
+static inline char *
 util_strstr(const char *haystack, const char *needle)
 {
    const char *p = haystack;
-   int len = strlen(needle);
+   size_t len = strlen(needle);
 
    for (; (p = util_strchr(p, *needle)) != 0; p++) {
       if (util_strncmp(p, needle, len) == 0) {
@@ -134,40 +179,62 @@ util_strstr(const char *haystack, const char *needle)
    return NULL;
 }
 
-static INLINE void *
-util_memmove(void *dest, const void *src, size_t n)
-{
-   char *p = (char *)dest;
-   const char *q = (const char *)src;
-   if (dest < src) {
-      while (n--)
-	 *p++ = *q++;
-   }
-   else
-   {
-      p += n;
-      q += n;
-      while (n--)
-	 *--p = *--q;
-   }
-   return dest;
-}
 
+#define util_strcasecmp stricmp
 
 #else
 
 #define util_vsnprintf vsnprintf
 #define util_snprintf snprintf
+#define util_vsprintf vsprintf
+#define util_sprintf sprintf
 #define util_strchr strchr
 #define util_strcmp strcmp
 #define util_strncmp strncmp
 #define util_strncat strncat
 #define util_strstr strstr
-#define util_memmove memmove
+#define util_strcasecmp strcasecmp
 
 #endif
 
 
+/**
+ * Printable string buffer
+ */
+struct util_strbuf
+{
+   char *str;
+   char *ptr;
+   size_t left;
+};
+
+
+static inline void
+util_strbuf_init(struct util_strbuf *sbuf, char *str, size_t size) 
+{
+   sbuf->str = str;
+   sbuf->str[0] = 0;
+   sbuf->ptr = sbuf->str;
+   sbuf->left = size;
+}
+
+
+static inline void
+util_strbuf_printf(struct util_strbuf *sbuf, const char *format, ...)
+{
+   if(sbuf->left > 1) {
+      size_t written;
+      va_list ap;
+      va_start(ap, format);
+      written = util_vsnprintf(sbuf->ptr, sbuf->left, format, ap);
+      va_end(ap);
+      sbuf->ptr += written;
+      sbuf->left -= written;
+   }
+}
+
+
+
 #ifdef __cplusplus
 }
 #endif