--- a/src/ucx/utils.c Thu Nov 10 18:44:48 2016 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,259 +0,0 @@ -/* - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. - * - * Copyright 2015 Olaf Wintermann. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include "utils.h" -#include <math.h> -#include <stdio.h> -#include <limits.h> -#include <errno.h> - -/* COPY FUCNTIONS */ -void* ucx_strcpy(void* s, void* data) { - char *str = (char*) s; - size_t n = 1+strlen(str); - char *cpy = (char*) malloc(n); - memcpy(cpy, str, n); - return cpy; -} - -void* ucx_memcpy(void* m, void* n) { - size_t k = *((size_t*)n); - void *cpy = malloc(k); - memcpy(cpy, m, k); - return cpy; -} - -size_t ucx_stream_copy(void *src, void *dest, read_func readfnc, - write_func writefnc, char* buf, size_t bufsize, size_t n) { - if(n == 0 || bufsize == 0) { - return 0; - } - - char *lbuf; - size_t ncp = 0; - - if(buf) { - lbuf = buf; - } else { - lbuf = (char*)malloc(bufsize); - if(lbuf == NULL) { - return 0; - } - } - - size_t r; - size_t rn = bufsize > n ? n : bufsize; - while((r = readfnc(lbuf, 1, rn, src)) != 0) { - r = writefnc(lbuf, 1, r, dest); - ncp += r; - n -= r; - rn = bufsize > n ? n : bufsize; - if(r == 0 || n == 0) { - break; - } - } - - if (lbuf != buf) { - free(lbuf); - } - - return ncp; -} - -/* COMPARE FUNCTIONS */ - -int ucx_strcmp(void *s1, void *s2, void *data) { - return strcmp((char*)s1, (char*)s2); -} - -int ucx_strncmp(void *s1, void *s2, void *n) { - return strncmp((char*)s1, (char*)s2, *((size_t*) n)); -} - -int ucx_intcmp(void *i1, void *i2, void *data) { - int a = *((int*) i1); - int b = *((int*) i2); - if (a == b) { - return 0; - } else { - return a < b ? -1 : 1; - } -} - -int ucx_floatcmp(void *f1, void *f2, void *epsilon) { - float a = *((float*) f1); - float b = *((float*) f2); - float e = !epsilon ? 1e-6f : *((float*)epsilon); - if (fabsf(a - b) < e) { - return 0; - } else { - return a < b ? -1 : 1; - } -} - -int ucx_doublecmp(void *d1, void *d2, void *epsilon) { - double a = *((float*) d1); - double b = *((float*) d2); - double e = !epsilon ? 1e-14 : *((double*)epsilon); - if (fabs(a - b) < e) { - return 0; - } else { - return a < b ? -1 : 1; - } -} - -int ucx_ptrcmp(void *ptr1, void *ptr2, void *data) { - intptr_t p1 = (intptr_t) ptr1; - intptr_t p2 = (intptr_t) ptr2; - if (p1 == p2) { - return 0; - } else { - return p1 < p2 ? -1 : 1; - } -} - -int ucx_memcmp(void *ptr1, void *ptr2, void *n) { - return memcmp(ptr1, ptr2, *((size_t*)n)); -} - -/* PRINTF FUNCTIONS */ - -#ifdef va_copy -#define UCX_PRINTF_BUFSIZE 256 -#else -#pragma message("WARNING: C99 va_copy macro not supported by this platform" \ - " - limiting ucx_*printf to 2 KiB") -#define UCX_PRINTF_BUFSIZE 0x800 -#endif - -int ucx_fprintf(void *stream, write_func wfc, const char *fmt, ...) { - int ret; - va_list ap; - va_start(ap, fmt); - ret = ucx_vfprintf(stream, wfc, fmt, ap); - va_end(ap); - return ret; -} - -int ucx_vfprintf(void *stream, write_func wfc, const char *fmt, va_list ap) { - char buf[UCX_PRINTF_BUFSIZE]; -#ifdef va_copy - va_list ap2; - va_copy(ap2, ap); - int ret = vsnprintf(buf, UCX_PRINTF_BUFSIZE, fmt, ap); - if (ret < 0) { - return ret; - } else if (ret < UCX_PRINTF_BUFSIZE) { - return (int)wfc(buf, 1, ret, stream); - } else { - if (ret == INT_MAX) { - errno = ENOMEM; - return -1; - } - - int len = ret + 1; - char *newbuf = (char*)malloc(len); - if (!newbuf) { - return -1; - } - - ret = vsnprintf(newbuf, len, fmt, ap2); - if (ret > 0) { - ret = (int)wfc(newbuf, 1, ret, stream); - } - free(newbuf); - } - return ret; -#else - int ret = vsnprintf(buf, UCX_PRINTF_BUFSIZE, fmt, ap); - if (ret < 0) { - return ret; - } else if (ret < UCX_PRINTF_BUFSIZE) { - return (int)wfc(buf, 1, ret, stream); - } else { - errno = ENOMEM; - return -1; - } -#endif -} - -sstr_t ucx_asprintf(UcxAllocator *allocator, const char *fmt, ...) { - va_list ap; - sstr_t ret; - va_start(ap, fmt); - ret = ucx_vasprintf(allocator, fmt, ap); - va_end(ap); - return ret; -} - -sstr_t ucx_vasprintf(UcxAllocator *a, const char *fmt, va_list ap) { - sstr_t s; - s.ptr = NULL; - s.length = 0; - char buf[UCX_PRINTF_BUFSIZE]; -#ifdef va_copy - va_list ap2; - va_copy(ap2, ap); - int ret = vsnprintf(buf, UCX_PRINTF_BUFSIZE, fmt, ap); - if (ret > 0 && ret < UCX_PRINTF_BUFSIZE) { - s.ptr = (char*)almalloc(a, ret + 1); - if (s.ptr) { - s.length = (size_t)ret; - memcpy(s.ptr, buf, ret); - s.ptr[s.length] = '\0'; - } - } else if (ret == INT_MAX) { - errno = ENOMEM; - } else { - int len = ret + 1; - s.ptr = (char*)almalloc(a, len); - if (s.ptr) { - ret = vsnprintf(s.ptr, len, fmt, ap2); - if (ret < 0) { - free(s.ptr); - s.ptr = NULL; - } else { - s.length = (size_t)ret; - } - } - } -#else - int ret = vsnprintf(buf, UCX_PRINTF_BUFSIZE, fmt, ap); - if (ret > 0 && ret < UCX_PRINTF_BUFSIZE) { - s.ptr = (char*)almalloc(a, ret + 1); - if (s.ptr) { - s.length = (size_t)ret; - memcpy(s.ptr, buf, ret); - s.ptr[s.length] = '\0'; - } - } else { - errno = ENOMEM; - } -#endif - return s; -}