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#include "platform.h" |
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#include "rtio.h" |
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#include "resolu.h" |
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< |
#ifdef _WIN32 |
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< |
#undef ftello |
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< |
#define ftello ftell |
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< |
#undef ssize_t |
18 |
< |
#define ssize_t size_t |
14 |
> |
#if defined(_WIN32) || defined(_WIN64) |
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> |
#undef ftello |
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> |
#define ftello ftell |
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> |
#undef ssize_t |
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> |
#define ssize_t size_t |
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#else |
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< |
#include <sys/mman.h> |
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> |
#include <sys/mman.h> |
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#endif |
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|
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#ifdef getc_unlocked /* avoid horrendous overhead of flockfile */ |
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#undef getc |
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#undef putc |
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#define getc getc_unlocked |
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#define putc putc_unlocked |
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– |
#endif |
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|
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typedef struct { |
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void *base; /* pointer to base memory */ |
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size_t len; /* allocated memory length */ |
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mp->len = 0; |
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} |
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|
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+ |
/* load memory from an input stream, starting from current position */ |
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+ |
static int |
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+ |
load_stream(MEMLOAD *mp, FILE *fp) |
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{ |
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+ |
size_t alloced = 0; |
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+ |
char buf[8192]; |
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+ |
size_t nr; |
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+ |
|
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+ |
if (mp == NULL) |
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return(-1); |
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mp->base = NULL; |
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+ |
mp->len = 0; |
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+ |
mp->mapped = 0; |
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+ |
if (fp == NULL) |
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+ |
return(-1); |
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+ |
while ((nr = fread(buf, 1, sizeof(buf), fp)) > 0) { |
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+ |
if (!alloced) |
70 |
+ |
mp->base = malloc(alloced = nr); |
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+ |
else if (mp->len+nr > alloced) |
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+ |
mp->base = realloc(mp->base, |
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+ |
alloced = alloced*(2+(nr==sizeof(buf)))/2+nr); |
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+ |
if (mp->base == NULL) |
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+ |
return(-1); |
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+ |
memcpy((char *)mp->base + mp->len, buf, nr); |
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+ |
mp->len += nr; |
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+ |
} |
79 |
+ |
if (ferror(fp)) { |
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+ |
free_load(mp); |
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+ |
return(-1); |
82 |
+ |
} |
83 |
+ |
if (alloced > mp->len*5/4) /* don't waste too much space */ |
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+ |
mp->base = realloc(mp->base, mp->len); |
85 |
+ |
return(mp->len > 0); |
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+ |
} |
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+ |
|
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/* load a file into memory */ |
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static int |
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load_file(MEMLOAD *mp, FILE *fp) |
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int fd; |
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off_t skip, flen; |
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|
95 |
+ |
#if defined(_WIN32) || defined(_WIN64) |
96 |
+ |
/* too difficult to fix this */ |
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+ |
return load_stream(mp, fp); |
98 |
+ |
#endif |
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if (mp == NULL) |
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return(-1); |
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mp->base = NULL; |
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return(-1); |
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} |
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return(1); |
100 |
– |
} |
101 |
– |
|
102 |
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/* load memory from an input stream, starting from current position */ |
103 |
– |
static int |
104 |
– |
load_stream(MEMLOAD *mp, FILE *fp) |
105 |
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{ |
106 |
– |
size_t alloced = 0; |
107 |
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char buf[8192]; |
108 |
– |
size_t nr; |
109 |
– |
|
110 |
– |
if (mp == NULL) |
111 |
– |
return(-1); |
112 |
– |
mp->base = NULL; |
113 |
– |
mp->len = 0; |
114 |
– |
mp->mapped = 0; |
115 |
– |
if (fp == NULL) |
116 |
– |
return(-1); |
117 |
– |
while ((nr = fread(buf, 1, sizeof(buf), fp)) > 0) { |
118 |
– |
if (!alloced) |
119 |
– |
mp->base = malloc(nr); |
120 |
– |
else if (mp->len+nr > alloced) |
121 |
– |
mp->base = realloc(mp->base, |
122 |
– |
alloced = alloced*(2+(nr==sizeof(buf)))/2+nr); |
123 |
– |
if (mp->base == NULL) |
124 |
– |
return(-1); |
125 |
– |
memcpy((char *)mp->base + mp->len, buf, nr); |
126 |
– |
mp->len += nr; |
127 |
– |
} |
128 |
– |
if (ferror(fp)) { |
129 |
– |
free_load(mp); |
130 |
– |
return(-1); |
131 |
– |
} |
132 |
– |
if (alloced > mp->len*5/4) /* don't waste too much space */ |
133 |
– |
mp->base = realloc(mp->base, mp->len); |
134 |
– |
return(mp->len > 0); |
132 |
|
} |
133 |
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|
134 |
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/* free a record index */ |