--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ucx/utils.c Wed Dec 09 11:32:01 2020 +0100
@@ -0,0 +1,448 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2017 Mike Becker, 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 "ucx/utils.h"
+
+#include <math.h>
+#include <stdio.h>
+#include <limits.h>
+#include <errno.h>
+
+/* COPY FUCNTIONS */
+void* ucx_strcpy(const void* s, void* data) {
+ const char *str = (const char*) s;
+ size_t n = 1+strlen(str);
+ char *cpy = (char*) malloc(n);
+ memcpy(cpy, str, n);
+ return cpy;
+}
+
+void* ucx_memcpy(const void* m, void* n) {
+ size_t k = *((size_t*)n);
+ void *cpy = malloc(k);
+ memcpy(cpy, m, k);
+ return cpy;
+}
+
+size_t ucx_stream_bncopy(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_cmp_str(const void *s1, const void *s2, void *data) {
+ return strcmp((const char*)s1, (const char*)s2);
+}
+
+int ucx_cmp_strn(const void *s1, const void *s2, void *n) {
+ return strncmp((const char*)s1, (const char*)s2, *((size_t*) n));
+}
+
+int ucx_cmp_sstr(const void *s1, const void *s2, void *data) {
+ sstr_t a = *(const sstr_t*) s1;
+ sstr_t b = *(const sstr_t*) s2;
+ return sstrcmp(a, b);
+}
+
+int ucx_cmp_int(const void *i1, const void *i2, void *data) {
+ int a = *((const int*) i1);
+ int b = *((const int*) i2);
+ if (a == b) {
+ return 0;
+ } else {
+ return a < b ? -1 : 1;
+ }
+}
+
+int ucx_cmp_longint(const void *i1, const void *i2, void *data) {
+ long int a = *((const long int*) i1);
+ long int b = *((const long int*) i2);
+ if (a == b) {
+ return 0;
+ } else {
+ return a < b ? -1 : 1;
+ }
+}
+
+int ucx_cmp_longlong(const void *i1, const void *i2, void *data) {
+ long long a = *((const long long*) i1);
+ long long b = *((const long long*) i2);
+ if (a == b) {
+ return 0;
+ } else {
+ return a < b ? -1 : 1;
+ }
+}
+
+int ucx_cmp_int16(const void *i1, const void *i2, void *data) {
+ int16_t a = *((const int16_t*) i1);
+ int16_t b = *((const int16_t*) i2);
+ if (a == b) {
+ return 0;
+ } else {
+ return a < b ? -1 : 1;
+ }
+}
+
+int ucx_cmp_int32(const void *i1, const void *i2, void *data) {
+ int32_t a = *((const int32_t*) i1);
+ int32_t b = *((const int32_t*) i2);
+ if (a == b) {
+ return 0;
+ } else {
+ return a < b ? -1 : 1;
+ }
+}
+
+int ucx_cmp_int64(const void *i1, const void *i2, void *data) {
+ int64_t a = *((const int64_t*) i1);
+ int64_t b = *((const int64_t*) i2);
+ if (a == b) {
+ return 0;
+ } else {
+ return a < b ? -1 : 1;
+ }
+}
+
+int ucx_cmp_uint(const void *i1, const void *i2, void *data) {
+ unsigned int a = *((const unsigned int*) i1);
+ unsigned int b = *((const unsigned int*) i2);
+ if (a == b) {
+ return 0;
+ } else {
+ return a < b ? -1 : 1;
+ }
+}
+
+int ucx_cmp_ulongint(const void *i1, const void *i2, void *data) {
+ unsigned long int a = *((const unsigned long int*) i1);
+ unsigned long int b = *((const unsigned long int*) i2);
+ if (a == b) {
+ return 0;
+ } else {
+ return a < b ? -1 : 1;
+ }
+}
+
+int ucx_cmp_ulonglong(const void *i1, const void *i2, void *data) {
+ unsigned long long a = *((const unsigned long long*) i1);
+ unsigned long long b = *((const unsigned long long*) i2);
+ if (a == b) {
+ return 0;
+ } else {
+ return a < b ? -1 : 1;
+ }
+}
+
+int ucx_cmp_uint16(const void *i1, const void *i2, void *data) {
+ uint16_t a = *((const uint16_t*) i1);
+ uint16_t b = *((const uint16_t*) i2);
+ if (a == b) {
+ return 0;
+ } else {
+ return a < b ? -1 : 1;
+ }
+}
+
+int ucx_cmp_uint32(const void *i1, const void *i2, void *data) {
+ uint32_t a = *((const uint32_t*) i1);
+ uint32_t b = *((const uint32_t*) i2);
+ if (a == b) {
+ return 0;
+ } else {
+ return a < b ? -1 : 1;
+ }
+}
+
+int ucx_cmp_uint64(const void *i1, const void *i2, void *data) {
+ uint64_t a = *((const uint64_t*) i1);
+ uint64_t b = *((const uint64_t*) i2);
+ if (a == b) {
+ return 0;
+ } else {
+ return a < b ? -1 : 1;
+ }
+}
+
+intmax_t ucx_dist_int(const void *i1, const void *i2, void *data) {
+ intmax_t a = *((const int*) i1);
+ intmax_t b = *((const int*) i2);
+ return a - b;
+}
+
+intmax_t ucx_dist_longint(const void *i1, const void *i2, void *data) {
+ intmax_t a = *((const long int*) i1);
+ intmax_t b = *((const long int*) i2);
+ return a - b;
+}
+
+intmax_t ucx_dist_longlong(const void *i1, const void *i2, void *data) {
+ intmax_t a = *((const long long*) i1);
+ intmax_t b = *((const long long*) i2);
+ return a - b;
+}
+
+intmax_t ucx_dist_int16(const void *i1, const void *i2, void *data) {
+ intmax_t a = *((const int16_t*) i1);
+ intmax_t b = *((const int16_t*) i2);
+ return a - b;
+}
+
+intmax_t ucx_dist_int32(const void *i1, const void *i2, void *data) {
+ intmax_t a = *((const int32_t*) i1);
+ intmax_t b = *((const int32_t*) i2);
+ return a - b;
+}
+
+intmax_t ucx_dist_int64(const void *i1, const void *i2, void *data) {
+ intmax_t a = *((const int64_t*) i1);
+ intmax_t b = *((const int64_t*) i2);
+ return a - b;
+}
+
+intmax_t ucx_dist_uint(const void *i1, const void *i2, void *data) {
+ uintmax_t a = *((const unsigned int*) i1);
+ uintmax_t b = *((const unsigned int*) i2);
+ return a > b ? (intmax_t)(a - b) : -(intmax_t)(b - a);
+}
+
+intmax_t ucx_dist_ulongint(const void *i1, const void *i2, void *data) {
+ uintmax_t a = *((const unsigned long int*) i1);
+ uintmax_t b = *((const unsigned long int*) i2);
+ return a > b ? (intmax_t)(a - b) : -(intmax_t)(b - a);
+}
+
+intmax_t ucx_dist_ulonglong(const void *i1, const void *i2, void *data) {
+ uintmax_t a = *((const unsigned long long*) i1);
+ uintmax_t b = *((const unsigned long long*) i2);
+ return a > b ? (intmax_t)(a - b) : -(intmax_t)(b - a);
+}
+
+intmax_t ucx_dist_uint16(const void *i1, const void *i2, void *data) {
+ uintmax_t a = *((const uint16_t*) i1);
+ uintmax_t b = *((const uint16_t*) i2);
+ return a > b ? (intmax_t)(a - b) : -(intmax_t)(b - a);
+}
+
+intmax_t ucx_dist_uint32(const void *i1, const void *i2, void *data) {
+ uintmax_t a = *((const uint32_t*) i1);
+ uintmax_t b = *((const uint32_t*) i2);
+ return a > b ? (intmax_t)(a - b) : -(intmax_t)(b - a);
+}
+
+intmax_t ucx_dist_uint64(const void *i1, const void *i2, void *data) {
+ uintmax_t a = *((const uint64_t*) i1);
+ uintmax_t b = *((const uint64_t*) i2);
+ return a > b ? (intmax_t)(a - b) : -(intmax_t)(b - a);
+}
+
+int ucx_cmp_float(const void *f1, const void *f2, void *epsilon) {
+ float a = *((const float*) f1);
+ float b = *((const float*) f2);
+ float e = !epsilon ? 1e-6f : *((float*)epsilon);
+ if (fabsf(a - b) < e) {
+ return 0;
+ } else {
+ return a < b ? -1 : 1;
+ }
+}
+
+int ucx_cmp_double(const void *d1, const void *d2, void *epsilon) {
+ double a = *((const double*) d1);
+ double b = *((const double*) d2);
+ double e = !epsilon ? 1e-14 : *((double*)epsilon);
+ if (fabs(a - b) < e) {
+ return 0;
+ } else {
+ return a < b ? -1 : 1;
+ }
+}
+
+int ucx_cmp_ptr(const void *ptr1, const void *ptr2, void *data) {
+ const intptr_t p1 = (const intptr_t) ptr1;
+ const intptr_t p2 = (const intptr_t) ptr2;
+ if (p1 == p2) {
+ return 0;
+ } else {
+ return p1 < p2 ? -1 : 1;
+ }
+}
+
+int ucx_cmp_mem(const void *ptr1, const 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;
+}