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1 | /* |
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2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
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3 | * |
259 | 4 | * Copyright 2017 Mike Becker, Olaf Wintermann All rights reserved. |
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5 | * |
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6 | * Redistribution and use in source and binary forms, with or without |
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7 | * modification, are permitted provided that the following conditions are met: |
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8 | * |
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9 | * 1. Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * |
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12 | * 2. Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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26 | * POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |
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29 | #include "ucx/utils.h" |
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30 | |
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31 | #include <math.h> |
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32 | #include <stdio.h> |
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33 | #include <limits.h> |
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34 | #include <errno.h> |
89 | 35 | |
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36 | /* COPY FUCNTIONS */ |
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37 | void* ucx_strcpy(const void* s, void* data) { |
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38 | const char *str = (const char*) s; |
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39 | size_t n = 1+strlen(str); |
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40 | char *cpy = (char*) malloc(n); |
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41 | memcpy(cpy, str, n); |
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42 | return cpy; |
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43 | } |
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44 | |
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45 | void* ucx_memcpy(const void* m, void* n) { |
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46 | size_t k = *((size_t*)n); |
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47 | void *cpy = malloc(k); |
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48 | memcpy(cpy, m, k); |
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49 | return cpy; |
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50 | } |
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51 | |
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52 | size_t ucx_stream_bncopy(void *src, void *dest, read_func readfnc, |
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53 | write_func writefnc, char* buf, size_t bufsize, size_t n) { |
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54 | if(n == 0 || bufsize == 0) { |
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55 | return 0; |
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56 | } |
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57 | |
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58 | char *lbuf; |
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59 | size_t ncp = 0; |
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60 | |
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61 | if(buf) { |
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62 | lbuf = buf; |
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63 | } else { |
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64 | lbuf = (char*)malloc(bufsize); |
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65 | if(lbuf == NULL) { |
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66 | return 0; |
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67 | } |
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68 | } |
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69 | |
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70 | size_t r; |
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71 | size_t rn = bufsize > n ? n : bufsize; |
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72 | while((r = readfnc(lbuf, 1, rn, src)) != 0) { |
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73 | r = writefnc(lbuf, 1, r, dest); |
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74 | ncp += r; |
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75 | n -= r; |
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76 | rn = bufsize > n ? n : bufsize; |
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77 | if(r == 0 || n == 0) { |
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78 | break; |
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79 | } |
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80 | } |
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81 | |
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82 | if (lbuf != buf) { |
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83 | free(lbuf); |
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84 | } |
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85 | |
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86 | return ncp; |
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87 | } |
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88 | |
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89 | /* COMPARE FUNCTIONS */ |
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90 | |
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91 | int ucx_cmp_str(const void *s1, const void *s2, void *data) { |
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92 | return strcmp((const char*)s1, (const char*)s2); |
89 | 93 | } |
94 | ||
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95 | int ucx_cmp_strn(const void *s1, const void *s2, void *n) { |
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96 | return strncmp((const char*)s1, (const char*)s2, *((size_t*) n)); |
89 | 97 | } |
98 | ||
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99 | int ucx_cmp_sstr(const void *s1, const void *s2, void *data) { |
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100 | sstr_t a = *(const sstr_t*) s1; |
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101 | sstr_t b = *(const sstr_t*) s2; |
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102 | return sstrcmp(a, b); |
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103 | } |
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104 | |
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105 | int ucx_cmp_int(const void *i1, const void *i2, void *data) { |
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106 | int a = *((const int*) i1); |
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107 | int b = *((const int*) i2); |
89 | 108 | if (a == b) { |
109 | return 0; | |
110 | } else { | |
111 | return a < b ? -1 : 1; | |
112 | } | |
113 | } | |
114 | ||
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115 | int ucx_cmp_longint(const void *i1, const void *i2, void *data) { |
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116 | int a = *((const long int*) i1); |
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117 | int b = *((const long int*) i2); |
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118 | if (a == b) { |
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119 | return 0; |
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120 | } else { |
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121 | return a < b ? -1 : 1; |
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122 | } |
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123 | } |
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124 | |
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125 | intmax_t ucx_dist_int(const void *i1, const void *i2, void *data) { |
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126 | intmax_t a = *((const int*) i1); |
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127 | intmax_t b = *((const int*) i2); |
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128 | return a - b; |
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129 | } |
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130 | |
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131 | intmax_t ucx_dist_longint(const void *i1, const void *i2, void *data) { |
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132 | intmax_t a = *((const long int*) i1); |
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133 | intmax_t b = *((const long int*) i2); |
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134 | return a - b; |
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135 | } |
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136 | |
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137 | int ucx_cmp_float(const void *f1, const void *f2, void *epsilon) { |
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138 | float a = *((const float*) f1); |
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139 | float b = *((const float*) f2); |
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140 | float e = !epsilon ? 1e-6f : *((float*)epsilon); |
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141 | if (fabsf(a - b) < e) { |
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142 | return 0; |
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143 | } else { |
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144 | return a < b ? -1 : 1; |
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145 | } |
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146 | } |
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147 | |
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148 | int ucx_cmp_double(const void *d1, const void *d2, void *epsilon) { |
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149 | double a = *((const double*) d1); |
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150 | double b = *((const double*) d2); |
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151 | double e = !epsilon ? 1e-14 : *((double*)epsilon); |
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152 | if (fabs(a - b) < e) { |
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153 | return 0; |
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154 | } else { |
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155 | return a < b ? -1 : 1; |
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156 | } |
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157 | } |
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158 | |
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159 | int ucx_cmp_ptr(const void *ptr1, const void *ptr2, void *data) { |
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160 | const intptr_t p1 = (const intptr_t) ptr1; |
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161 | const intptr_t p2 = (const intptr_t) ptr2; |
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162 | if (p1 == p2) { |
89 | 163 | return 0; |
164 | } else { | |
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165 | return p1 < p2 ? -1 : 1; |
89 | 166 | } |
167 | } | |
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168 | |
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169 | int ucx_cmp_mem(const void *ptr1, const void *ptr2, void *n) { |
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170 | return memcmp(ptr1, ptr2, *((size_t*)n)); |
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171 | } |
142
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172 | |
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173 | /* PRINTF FUNCTIONS */ |
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174 | |
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175 | #ifdef va_copy |
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176 | #define UCX_PRINTF_BUFSIZE 256 |
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177 | #else |
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178 | #pragma message("WARNING: C99 va_copy macro not supported by this platform" \ |
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179 | " - limiting ucx_*printf to 2 KiB") |
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180 | #define UCX_PRINTF_BUFSIZE 0x800 |
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181 | #endif |
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182 | |
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183 | int ucx_fprintf(void *stream, write_func wfc, const char *fmt, ...) { |
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184 | int ret; |
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185 | va_list ap; |
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186 | va_start(ap, fmt); |
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187 | ret = ucx_vfprintf(stream, wfc, fmt, ap); |
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188 | va_end(ap); |
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189 | return ret; |
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190 | } |
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191 | |
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192 | int ucx_vfprintf(void *stream, write_func wfc, const char *fmt, va_list ap) { |
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193 | char buf[UCX_PRINTF_BUFSIZE]; |
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194 | #ifdef va_copy |
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195 | va_list ap2; |
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196 | va_copy(ap2, ap); |
142
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197 | int ret = vsnprintf(buf, UCX_PRINTF_BUFSIZE, fmt, ap); |
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198 | if (ret < 0) { |
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199 | return ret; |
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200 | } else if (ret < UCX_PRINTF_BUFSIZE) { |
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201 | return (int)wfc(buf, 1, ret, stream); |
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202 | } else { |
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203 | if (ret == INT_MAX) { |
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204 | errno = ENOMEM; |
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205 | return -1; |
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206 | } |
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207 | |
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208 | int len = ret + 1; |
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209 | char *newbuf = (char*)malloc(len); |
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210 | if (!newbuf) { |
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211 | return -1; |
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212 | } |
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213 | |
144
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214 | ret = vsnprintf(newbuf, len, fmt, ap2); |
142
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215 | if (ret > 0) { |
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216 | ret = (int)wfc(newbuf, 1, ret, stream); |
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217 | } |
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218 | free(newbuf); |
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219 | } |
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220 | return ret; |
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221 | #else |
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222 | int ret = vsnprintf(buf, UCX_PRINTF_BUFSIZE, fmt, ap); |
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223 | if (ret < 0) { |
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224 | return ret; |
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225 | } else if (ret < UCX_PRINTF_BUFSIZE) { |
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226 | return (int)wfc(buf, 1, ret, stream); |
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227 | } else { |
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228 | errno = ENOMEM; |
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229 | return -1; |
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230 | } |
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231 | #endif |
142
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232 | } |
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233 | |
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234 | sstr_t ucx_asprintf(UcxAllocator *allocator, const char *fmt, ...) { |
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235 | va_list ap; |
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236 | sstr_t ret; |
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237 | va_start(ap, fmt); |
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238 | ret = ucx_vasprintf(allocator, fmt, ap); |
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239 | va_end(ap); |
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240 | return ret; |
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241 | } |
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242 | |
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243 | sstr_t ucx_vasprintf(UcxAllocator *a, const char *fmt, va_list ap) { |
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244 | sstr_t s; |
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245 | s.ptr = NULL; |
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246 | s.length = 0; |
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247 | char buf[UCX_PRINTF_BUFSIZE]; |
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248 | #ifdef va_copy |
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249 | va_list ap2; |
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250 | va_copy(ap2, ap); |
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251 | int ret = vsnprintf(buf, UCX_PRINTF_BUFSIZE, fmt, ap); |
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252 | if (ret > 0 && ret < UCX_PRINTF_BUFSIZE) { |
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253 | s.ptr = (char*)almalloc(a, ret + 1); |
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254 | if (s.ptr) { |
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255 | s.length = (size_t)ret; |
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256 | memcpy(s.ptr, buf, ret); |
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257 | s.ptr[s.length] = '\0'; |
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258 | } |
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259 | } else if (ret == INT_MAX) { |
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260 | errno = ENOMEM; |
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261 | } else { |
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262 | int len = ret + 1; |
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263 | s.ptr = (char*)almalloc(a, len); |
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264 | if (s.ptr) { |
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265 | ret = vsnprintf(s.ptr, len, fmt, ap2); |
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266 | if (ret < 0) { |
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267 | free(s.ptr); |
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268 | s.ptr = NULL; |
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269 | } else { |
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270 | s.length = (size_t)ret; |
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271 | } |
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272 | } |
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273 | } |
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274 | #else |
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275 | int ret = vsnprintf(buf, UCX_PRINTF_BUFSIZE, fmt, ap); |
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276 | if (ret > 0 && ret < UCX_PRINTF_BUFSIZE) { |
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277 | s.ptr = (char*)almalloc(a, ret + 1); |
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278 | if (s.ptr) { |
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279 | s.length = (size_t)ret; |
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280 | memcpy(s.ptr, buf, ret); |
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281 | s.ptr[s.length] = '\0'; |
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282 | } |
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283 | } else { |
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284 | errno = ENOMEM; |
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285 | } |
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286 | #endif |
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287 | return s; |
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288 | } |