universe@103: /*
universe@103:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
universe@103:  *
universe@259:  * Copyright 2017 Mike Becker, Olaf Wintermann All rights reserved.
universe@103:  *
universe@103:  * Redistribution and use in source and binary forms, with or without
universe@103:  * modification, are permitted provided that the following conditions are met:
universe@103:  *
universe@103:  *   1. Redistributions of source code must retain the above copyright
universe@103:  *      notice, this list of conditions and the following disclaimer.
universe@103:  *
universe@103:  *   2. Redistributions in binary form must reproduce the above copyright
universe@103:  *      notice, this list of conditions and the following disclaimer in the
universe@103:  *      documentation and/or other materials provided with the distribution.
universe@103:  *
universe@103:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
universe@103:  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
universe@103:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
universe@103:  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
universe@103:  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
universe@103:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
universe@103:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
universe@103:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
universe@103:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
universe@103:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
universe@103:  * POSSIBILITY OF SUCH DAMAGE.
universe@103:  */
universe@103: 
universe@251: #include "ucx/utils.h"
universe@251: 
universe@140: #include <math.h>
olaf@142: #include <stdio.h>
olaf@142: #include <limits.h>
olaf@142: #include <errno.h>
universe@89: 
universe@94: /* COPY FUCNTIONS */
universe@244: void* ucx_strcpy(const void* s, void* data) {
universe@244:     const char *str = (const char*) s;
universe@94:     size_t n = 1+strlen(str);
universe@94:     char *cpy = (char*) malloc(n);
universe@94:     memcpy(cpy, str, n);
universe@94:     return cpy;
universe@94: }
universe@94: 
universe@244: void* ucx_memcpy(const void* m, void* n) {
universe@94:     size_t k = *((size_t*)n);
universe@94:     void *cpy = malloc(k);
universe@94:     memcpy(cpy, m, k);
universe@94:     return cpy;
universe@94: }
universe@94: 
universe@222: size_t ucx_stream_bncopy(void *src, void *dest, read_func readfnc,
universe@140:         write_func writefnc, char* buf, size_t bufsize, size_t n) {
universe@140:     if(n == 0 || bufsize == 0) {
universe@140:         return 0;
universe@140:     }
universe@140:     
universe@181:     char *lbuf;    
universe@140:     size_t ncp = 0;
universe@181:     
universe@181:     if(buf) {
universe@181:         lbuf = buf;
universe@181:     } else {
universe@181:         lbuf = (char*)malloc(bufsize);
universe@181:         if(lbuf == NULL) {
universe@140:             return 0;
universe@140:         }
universe@140:     }
universe@140:     
universe@140:     size_t r;
universe@140:     size_t rn = bufsize > n ? n : bufsize;
universe@181:     while((r = readfnc(lbuf, 1, rn, src)) != 0) {
universe@181:         r = writefnc(lbuf, 1, r, dest);
universe@140:         ncp += r;
universe@140:         n -= r;
universe@140:         rn = bufsize > n ? n : bufsize;
universe@140:         if(r == 0 || n == 0) {
universe@140:             break;
universe@140:         }
universe@140:     }
universe@140:     
universe@181:     if (lbuf != buf) {
universe@181:         free(lbuf);
universe@181:     }
universe@181:     
universe@140:     return ncp;
universe@140: }
universe@140: 
olaf@142: /* COMPARE FUNCTIONS */
universe@94: 
universe@308: int ucx_cmp_str(const void *s1, const void *s2, void *data) {
universe@244:     return strcmp((const char*)s1, (const char*)s2);
universe@89: }
universe@89: 
universe@309: int ucx_cmp_strn(const void *s1, const void *s2, void *n) {
universe@244:     return strncmp((const char*)s1, (const char*)s2, *((size_t*) n));
universe@89: }
universe@89: 
universe@310: int ucx_cmp_sstr(const void *s1, const void *s2, void *data) {
universe@292:     sstr_t a = *(const sstr_t*) s1;
universe@292:     sstr_t b = *(const sstr_t*) s2;
universe@292:     return sstrcmp(a, b);
universe@292: }
universe@292: 
universe@314: int ucx_cmp_int(const void *i1, const void *i2, void *data) {
universe@244:    int a = *((const int*) i1);
universe@244:    int b = *((const int*) i2);
universe@89:    if (a == b) {
universe@89:        return 0;
universe@89:    } else {
universe@89:        return a < b ? -1 : 1;
universe@89:    }
universe@89: }
universe@89: 
universe@314: int ucx_cmp_longint(const void *i1, const void *i2, void *data) {
universe@285:    int a = *((const long int*) i1);
universe@285:    int b = *((const long int*) i2);
universe@285:    if (a == b) {
universe@285:        return 0;
universe@285:    } else {
universe@285:        return a < b ? -1 : 1;
universe@285:    }
universe@285: }
universe@285: 
universe@314: intmax_t ucx_dist_int(const void *i1, const void *i2, void *data) {
universe@286:    intmax_t a = *((const int*) i1);
universe@286:    intmax_t b = *((const int*) i2);
universe@286:    return a - b;
universe@286: }
universe@286: 
universe@314: intmax_t ucx_dist_longint(const void *i1, const void *i2, void *data) {
universe@286:    intmax_t a = *((const long int*) i1);
universe@286:    intmax_t b = *((const long int*) i2);
universe@286:    return a - b;
universe@286: }
universe@286: 
universe@313: int ucx_cmp_float(const void *f1, const void *f2, void *epsilon) {
universe@244:    float a = *((const float*) f1);
universe@244:    float b = *((const float*) f2);
universe@92:    float e = !epsilon ? 1e-6f : *((float*)epsilon);
universe@92:    if (fabsf(a - b) < e) {
universe@92:        return 0;
universe@92:    } else {
universe@92:        return a < b ? -1 : 1;
universe@92:    }
universe@92: }
universe@92: 
universe@313: int ucx_cmp_double(const void *d1, const void *d2, void *epsilon) {
universe@244:    double a = *((const double*) d1);
universe@244:    double b = *((const double*) d2);
universe@92:    double e = !epsilon ? 1e-14 : *((double*)epsilon);
universe@92:    if (fabs(a - b) < e) {
universe@92:        return 0;
universe@92:    } else {
universe@92:        return a < b ? -1 : 1;
universe@92:    }
universe@92: }
universe@92: 
universe@312: int ucx_cmp_ptr(const void *ptr1, const void *ptr2, void *data) {
universe@244:     const intptr_t p1 = (const intptr_t) ptr1;
universe@244:     const intptr_t p2 = (const intptr_t) ptr2;
universe@194:     if (p1 == p2) {
universe@89:         return 0;
universe@89:     } else {
universe@194:         return p1  < p2 ? -1 : 1;
universe@89:     }
universe@89: }
universe@91: 
universe@311: int ucx_cmp_mem(const void *ptr1, const void *ptr2, void *n) {
universe@91:     return memcmp(ptr1, ptr2, *((size_t*)n));
universe@91: }
olaf@142: 
olaf@142: /* PRINTF FUNCTIONS */
olaf@142: 
universe@150: #ifdef va_copy
olaf@142: #define UCX_PRINTF_BUFSIZE 256
universe@150: #else
universe@150: #pragma message("WARNING: C99 va_copy macro not supported by this platform" \
universe@150:                 " - limiting ucx_*printf to 2 KiB")
universe@150: #define UCX_PRINTF_BUFSIZE 0x800
universe@150: #endif
olaf@142: 
olaf@142: int ucx_fprintf(void *stream, write_func wfc, const char *fmt, ...) {
universe@150:     int ret;
olaf@142:     va_list ap;
olaf@142:     va_start(ap, fmt);
olaf@142:     ret = ucx_vfprintf(stream, wfc, fmt, ap);
olaf@142:     va_end(ap);
olaf@142:     return ret;
olaf@142: }
olaf@142: 
olaf@142: int ucx_vfprintf(void *stream, write_func wfc, const char *fmt, va_list ap) {
olaf@142:     char buf[UCX_PRINTF_BUFSIZE];
universe@150: #ifdef va_copy
olaf@144:     va_list ap2;
olaf@144:     va_copy(ap2, ap);
olaf@142:     int ret = vsnprintf(buf, UCX_PRINTF_BUFSIZE, fmt, ap);
olaf@142:     if (ret < 0) {
olaf@142:         return ret;
olaf@142:     } else if (ret < UCX_PRINTF_BUFSIZE) {
olaf@142:         return (int)wfc(buf, 1, ret, stream);
olaf@142:     } else {
olaf@142:         if (ret == INT_MAX) {
olaf@142:             errno = ENOMEM;
olaf@142:             return -1;
olaf@142:         }
olaf@142:         
olaf@142:         int len = ret + 1;
olaf@142:         char *newbuf = (char*)malloc(len);
olaf@142:         if (!newbuf) {
olaf@142:             return -1;
olaf@142:         }
olaf@142:         
olaf@144:         ret = vsnprintf(newbuf, len, fmt, ap2);
olaf@142:         if (ret > 0) {
olaf@142:             ret = (int)wfc(newbuf, 1, ret, stream);
olaf@142:         }
olaf@142:         free(newbuf);
olaf@142:     }
olaf@142:     return ret;
universe@150: #else
universe@150:     int ret = vsnprintf(buf, UCX_PRINTF_BUFSIZE, fmt, ap);
universe@150:     if (ret < 0) {
universe@150:         return ret;
universe@150:     } else if (ret < UCX_PRINTF_BUFSIZE) {
universe@150:         return (int)wfc(buf, 1, ret, stream);
universe@150:     } else {
universe@150:         errno = ENOMEM;
universe@150:         return -1;
universe@150:     }
universe@150: #endif
olaf@142: }
olaf@142: 
olaf@142: sstr_t ucx_asprintf(UcxAllocator *allocator, const char *fmt, ...) {
olaf@142:     va_list ap;
olaf@142:     sstr_t ret;
olaf@142:     va_start(ap, fmt);
olaf@142:     ret = ucx_vasprintf(allocator, fmt, ap);
olaf@142:     va_end(ap);
olaf@142:     return ret;
olaf@142: }
olaf@142: 
olaf@142: sstr_t ucx_vasprintf(UcxAllocator *a, const char *fmt, va_list ap) {
olaf@142:     sstr_t s;
olaf@142:     s.ptr = NULL;
olaf@142:     s.length = 0;
universe@150:     char buf[UCX_PRINTF_BUFSIZE];
universe@150: #ifdef va_copy
olaf@144:     va_list ap2;
olaf@144:     va_copy(ap2, ap);
olaf@142:     int ret = vsnprintf(buf, UCX_PRINTF_BUFSIZE, fmt, ap);
olaf@142:     if (ret > 0 && ret < UCX_PRINTF_BUFSIZE) {
universe@173:         s.ptr = (char*)almalloc(a, ret + 1);
universe@174:         if (s.ptr) {
universe@174:             s.length = (size_t)ret;
universe@174:             memcpy(s.ptr, buf, ret);
universe@174:             s.ptr[s.length] = '\0';
universe@174:         }
olaf@142:     } else if (ret == INT_MAX) {
olaf@142:         errno = ENOMEM;
olaf@142:     } else  {
olaf@142:         int len = ret + 1;
universe@173:         s.ptr = (char*)almalloc(a, len);
universe@174:         if (s.ptr) {
universe@174:             ret = vsnprintf(s.ptr, len, fmt, ap2);
universe@174:             if (ret < 0) {
universe@174:                 free(s.ptr);
universe@174:                 s.ptr = NULL;
universe@174:             } else {
universe@174:                 s.length = (size_t)ret;
universe@174:             }
olaf@142:         }
olaf@142:     }
universe@150: #else
universe@150:     int ret = vsnprintf(buf, UCX_PRINTF_BUFSIZE, fmt, ap);
universe@150:     if (ret > 0 && ret < UCX_PRINTF_BUFSIZE) {
universe@173:         s.ptr = (char*)almalloc(a, ret + 1);
universe@174:         if (s.ptr) {
universe@174:             s.length = (size_t)ret;
universe@174:             memcpy(s.ptr, buf, ret);
universe@174:             s.ptr[s.length] = '\0';
universe@174:         }
universe@150:     } else {
universe@150:         errno = ENOMEM;
universe@150:     }
universe@150: #endif
olaf@142:     return s;
olaf@142: }