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Typo, Thread-secure ONCE (this time it is, too ;-), linux-compat

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This was SVN commit r89.
This commit is contained in:
Simon Brenner 2003-11-25 02:24:24 +00:00
parent a7b2cfe0fc
commit 69481d198e
2 changed files with 68 additions and 5 deletions
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45
source/lib/misc.cpp
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@ -236,3 +236,48 @@ void base32(const int len, const u8* in, u8* out)
*out++ = tbl[c];
}
}
#ifndef _WIN32
char *_itoa(int val, char *buffer, int radix)
{
return _ltoa(val, buffer, radix);
}
static const char digits[]="0123456789abcdef";
char *_ultoa(unsigned long int value, char *out, int radix)
{
char buf[21];
char *p=buf+21;
while (value)
{
*(--p)=digits[value % radix];
value /= radix;
}
memcpy(out, p, (buf+21)-p);
return out;
}
char *_ltoa(long val, char *out, int radix)
{
char buf[21];
char *p=buf+21;
bool sign=val < 0;
if (sign) val=-val;
while (val)
{
*(--p)=digits[val % radix];
val /= radix;
}
if (sign) *(--p) = '-';
memcpy(out, p, (buf+21)-p);
return out;
}
#endif

28
source/lib/misc.h
View File

@ -29,8 +29,8 @@
// check if compiler supports C99
// nested #if to avoid ICC warning about undefined macro value
#undef HAVE_C99
#ifdef __STDC_VERSION__
#if __STDC_VERSION__ >= 199901L)
#if defined(__STDC_VERSION__)
#if __STDC_VERSION__ >= 199901L
#define HAVE_C99
#endif
#endif
@ -38,7 +38,17 @@
#define UNUSED(param) (void)param;
#define ONCE(code) { static pthread_mutex_t mutex=PTHREAD_MUTEX_INITIALIZER; if(pthread_mutex_trylock(&(mutex))==0) { code; } }
#define ONCE(code) \
{ \
static pthread_mutex_t mutex=PTHREAD_MUTEX_INITIALIZER; \
static bool done=false; \
if(pthread_mutex_lock(&(mutex))==0 && !done) \
{ \
code; \
done=true; \
} \
pthread_mutex_unlock(&mutex); \
}
template<bool>
@ -86,6 +96,14 @@ extern u32 fnv_hash(const char* str, size_t len);
#define vsnprintf _vsnprintf
#endif
#ifndef _WIN32
extern char *_itoa(int value, char* buffer, int radix);
extern char *_ultoa(unsigned long int value, char *buffer, int radix);
extern char *_ltoa(long value, char *buffer, int radix);
#endif
#define BIT(n) (1ul << (n))
#ifndef min
@ -125,10 +143,11 @@ static inline u32 read_le32(const void* p)
{
#ifdef BIG_ENDIAN
u32 t = 0;
const u8 *_p=(const u8 *)p;
for(int i = 0; i < 4; i++)
{
t <<= 8;
t |= *(const u8*)p++;
t |= *(_p++);
}
return t;
#else
@ -147,7 +166,6 @@ extern int ilog2(const int n);
extern uintptr_t round_up(uintptr_t val, uintptr_t multiple);
// provide fminf for non-C99 compilers
#ifndef HAVE_C99
extern float fminf(float, float);