issue #128 refactor membuff_t to move it from the debugger to a shared location so that we can reuse it in the JIT implementation, some more initial work on the new backend
Dibyendu Majumdar
7 years ago
parent
b2ddc8038e
commit
1443fe9099
@ -1,4 +1,4 @@
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mkdir nojit64a
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cd nojit64a
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cmake -DCMAKE_INSTALL_PREFIX=c:\ravi -DCMAKE_BUILD_TYPE=Debug -G "Visual Studio 14 Win64" ..
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cmake -DCMAKE_INSTALL_PREFIX=c:\ravi -DCMAKE_BUILD_TYPE=Debug -G "Visual Studio 15 Win64" ..
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cd ..
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@ -1,4 +1,4 @@
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mkdir nojit64
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cd nojit64
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cmake -DCMAKE_INSTALL_PREFIX=c:\ravi -DCMAKE_BUILD_TYPE=Release -DSTATIC_BUILD=ON -G "Visual Studio 14 Win64" ..
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cmake -DCMAKE_INSTALL_PREFIX=c:\ravi -DCMAKE_BUILD_TYPE=Release -DSTATIC_BUILD=ON -G "Visual Studio 15 Win64" ..
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cd ..
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@ -0,0 +1,27 @@
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#ifndef RAVI_MEMBUF_H
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#define RAVI_MEMBUF_H
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdint.h>
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typedef struct {
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char *buf;
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size_t allocated_size;
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size_t pos;
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} membuff_t;
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extern void membuff_init(membuff_t *mb, size_t initial_size);
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extern void membuff_rewindpos(membuff_t *mb);
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extern void membuff_resize(membuff_t *mb, size_t new_size);
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extern void membuff_free(membuff_t *mb);
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extern void membuff_add_string(membuff_t *mb, const char *str);
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extern void membuff_add_bool(membuff_t *mb, bool value);
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extern void membuff_add_int(membuff_t *mb, int value);
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extern void membuff_add_longlong(membuff_t *mb, int64_t value);
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/* strncpy() with guaranteed 0 termination */
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extern void ravi_string_copy(char *buf, const char *src, size_t buflen);
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#endif
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@ -0,0 +1,65 @@
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#include <ravi_membuf.h>
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#include <assert.h>
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#include <ctype.h>
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#include <inttypes.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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void ravi_string_copy(char *buf, const char *src, size_t buflen) {
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if (buflen == 0) return;
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strncpy(buf, src, buflen);
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buf[buflen - 1] = 0;
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}
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void membuff_init(membuff_t *mb, size_t initial_size) {
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if (initial_size > 0) {
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mb->buf = (char *)calloc(1, initial_size);
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if (mb->buf == NULL) {
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fprintf(stderr, "out of memory\n");
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exit(1);
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}
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}
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else
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mb->buf = NULL;
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mb->pos = 0;
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mb->allocated_size = initial_size;
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}
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void membuff_rewindpos(membuff_t *mb) { mb->pos = 0; }
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void membuff_resize(membuff_t *mb, size_t new_size) {
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if (new_size <= mb->allocated_size) return;
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char *newmem = (char *)realloc(mb->buf, new_size);
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if (newmem == NULL) {
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fprintf(stderr, "out of memory\n");
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exit(1);
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}
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mb->buf = newmem;
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mb->allocated_size = new_size;
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}
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void membuff_free(membuff_t *mb) { free(mb->buf); }
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void membuff_add_string(membuff_t *mb, const char *str) {
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size_t len = strlen(str);
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size_t required_size = mb->pos + len + 1; /* extra byte for NULL terminator */
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membuff_resize(mb, required_size);
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assert(mb->allocated_size - mb->pos > len);
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ravi_string_copy(&mb->buf[mb->pos], str, mb->allocated_size - mb->pos);
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mb->pos += len;
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}
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void membuff_add_bool(membuff_t *mb, bool value) {
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if (value)
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membuff_add_string(mb, "true");
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else
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membuff_add_string(mb, "false");
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}
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void membuff_add_int(membuff_t *mb, int value) {
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char temp[100];
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snprintf(temp, sizeof temp, "%d", value);
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membuff_add_string(mb, temp);
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}
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void membuff_add_longlong(membuff_t *mb, int64_t value) {
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char temp[100];
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snprintf(temp, sizeof temp, "%" PRId64 "", value);
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membuff_add_string(mb, temp);
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}
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