kopia lustrzana https://github.com/jamescoxon/dl-fldigi
237 wiersze
7.1 KiB
C
237 wiersze
7.1 KiB
C
/* -----------------------------------------------------------------------------
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* util.h -- included by config.h
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*
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* Copyright (C) 2007-2009
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* Stelios Bounanos, M0GLD
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*
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* This file is part of fldigi.
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*
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* Fldigi is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Fldigi is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with fldigi. If not, see <http://www.gnu.org/licenses/>.
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* -----------------------------------------------------------------------------
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*/
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#ifndef UTIL_H
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#define UTIL_H
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// include the system defines
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#include "config.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef __STDC_LIMIT_MACROS
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# define __STDC_LIMIT_MACROS
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#endif
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#ifndef __STDC_FORMAT_MACROS
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# define __STDC_FORMAT_MACROS 1
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#endif
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#include <inttypes.h>
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#ifndef powerof2
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# define powerof2(n) ((((n) - 1) & (n)) == 0)
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#endif
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#ifndef MAX
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# define MAX(a, b) (((a) > (b)) ? (a) : (b))
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#endif
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#ifndef MIN
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# define MIN(a, b) (((a) < (b)) ? (a) : (b))
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#endif
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#ifndef CLAMP
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# define CLAMP(x, low, high) (((x)>(high))?(high):(((x)<(low))?(low):(x)))
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#endif
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#define WCLAMP(x, low, high) (((x)>(high))?(low):(((x)<(low))?(high):(x)))
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#ifdef __GNUC__
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# if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)
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# define full_memory_barrier() __sync_synchronize()
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# define read_memory_barrier() full_memory_barrier()
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# define write_memory_barrier() full_memory_barrier()
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# elif defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) || defined(__x86_64__)
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# define full_memory_barrier() asm volatile ("lock; addl $0,0(%%esp)":::"memory")
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# define read_memory_barrier() full_memory_barrier()
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# define write_memory_barrier() full_memory_barrier()
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/*
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These would be faster on SSE2-capable processors:
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# define full_memory_barrier() asm volatile ("mfence":::"memory")
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# define read_memory_barrier() asm volatile ("lfence":::"memory")
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# define write_memory_barrier() asm volatile ("sfence":::"memory")
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*/
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# elif defined(__ppc__) || defined(__powerpc__) || defined(__PPC__)
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# define full_memory_barrier() asm volatile("sync":::"memory")
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# define read_memory_barrier() full_memory_barrier()
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# define write_memory_barrier() full_memory_barrier()
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# else
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# warning Memory barriers not defined on this system
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# define full_memory_barrier() ((void)0)
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# define read_memory_barrier() full_memory_barrier()
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# define write_memory_barrier() full_memory_barrier()
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# endif
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#else
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# warning Memory barriers not defined on this system
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# define full_memory_barrier() ((void)0)
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# define read_memory_barrier() full_memory_barrier()
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# define write_memory_barrier() full_memory_barrier()
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#endif
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/* http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html */
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#if defined(__GNUC__) && (__GNUC__ >= 3)
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# define likely(x) __builtin_expect (!!(x), 1)
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# define unlikely(x) __builtin_expect (!!(x), 0)
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# define used__ __attribute__ ((__used__))
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# define unused__ __attribute__ ((__unused__))
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# define must_check__ __attribute__ ((__warn_unused_result__))
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# define deprecated__ __attribute__ ((__deprecated__))
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# define noreturn__ __attribute__ ((__noreturn__))
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# define pure__ __attribute__ ((__pure__))
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# define const__ __attribute__ ((__const__))
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# define malloc__ __attribute__ ((__malloc__))
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# define packed__ __attribute__ ((__packed__))
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# define inline__ inline __attribute__ ((__always_inline__))
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# define noinline__ __attribute__ ((__noinline__))
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# define nonnull__(x) __attribute__ ((__nonnull__(x)))
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# define format__(type_, index_, first_) __attribute__ ((format(type_, index_, first_)))
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#else
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# define likely(x) (x)
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# define unlikely(x) (x)
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# define used__
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# define unused__
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# define must_check__
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# define deprecated__
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# define noreturn__
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# define pure__
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# define const__
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# define malloc__
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# define packed__
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# define inline__
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# define noinline__
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# define nonnull__(x)
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# define format__(type_, index_, first_)
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#endif
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#if defined(__GNUC__) && ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
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# define hot__ __attribute__ ((__hot__))
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# define cold__ __attribute__ ((__cold__))
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#else
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# define hot__
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# define cold__
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#endif
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#include <stddef.h>
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const__ uint32_t ceil2(uint32_t n);
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const__ uint32_t floor2(uint32_t n);
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#if !HAVE_STRNLEN
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size_t strnlen(const char* str, size_t len);
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#endif
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#if !HAVE_STRCASESTR
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char* strcasestr(const char* haystack, const char* needle);
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#endif
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#if !HAVE_STRLCPY
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size_t strlcpy(char* dest, const char* src, size_t size);
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#endif
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#if !HAVE_SETENV
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int setenv(const char *name, const char *value, int replace);
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#endif
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#if !HAVE_UNSETENV
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int unsetenv(const char *name);
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#endif
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int set_cloexec(int fd, unsigned char v);
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int set_nonblock(int fd, unsigned char v);
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int set_nodelay(int fd, unsigned char v);
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int get_bufsize(int fd, int dir, int* len);
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int set_bufsize(int fd, int dir, int len);
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unsigned long ver2int(const char* version);
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void save_signals(void);
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void restore_signals(void);
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void MilliSleep(long msecs);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#ifdef __cplusplus
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uint32_t simple_hash_data(const unsigned char* buf, size_t len, uint32_t code = 0);
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uint32_t simple_hash_str(const unsigned char* str, uint32_t code = 0);
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#endif
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#ifdef __cplusplus
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const char* str2hex(const unsigned char* str, size_t len);
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const char* str2hex(const char* str, size_t len = 0);
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#else
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const char* str2hex(const unsigned* str, size_t len);
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#endif
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const char* uint2bin(unsigned u, size_t len);
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#if 0 && !defined(NDEBUG) && defined(deprecated__) && defined(__GNUC__) && !defined(__MINGW32__)
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#include <stdio.h>
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#include <string.h>
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deprecated__ typeof(sprintf) sprintf;
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/* there are far too many of these in the qrz code
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deprecated__ typeof(strcpy) strcpy;
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deprecated__ typeof(strcat) strcat;
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*/
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#endif
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#ifdef __WOE32__
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# define NOMINMAX 1
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#endif
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#ifndef __MINGW32__
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# define PRIuSZ "zu"
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# define PRIdSZ "zd"
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#else
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# define PRIuSZ "Iu"
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# define PRIdSZ "Id"
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#endif
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# define PATH_SEP "/"
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/// Unnamed sempahores are not supported on OS X (and named semaphores are broken on cygwin).
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#ifdef __APPLE__
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# define USE_NAMED_SEMAPHORES 1
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#else
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# define USE_NAMED_SEMAPHORES 0
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#endif
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/// Returns 0 if a process is running, 0 if not there and -1 if the test cannot be made.
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int test_process(int pid);
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/// Starts a process and returns its pid, and -1 if error. Returns 0 if this cannot be made.
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int fork_process( const char * cmd );
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/// Returns NULL if no error.
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const char * create_directory( const char * dir );
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int directory_is_created( const char * dir );
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#endif /* UTIL_H */
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/*
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Local Variables:
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mode: c++
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c-file-style: "linux"
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End:
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*/
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