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unix/input: Switch to POSIX I/O for history reading/writing.

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This commit is contained in:
Paul Sokolovsky 2015-11-16 07:40:20 +02:00
parent f8bc3f6964
commit 79c4ec1102
1 changed files with 18 additions and 11 deletions
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29
unix/input.c
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@ -27,6 +27,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include "py/mpstate.h"
#include "py/mphal.h"
@ -100,14 +101,18 @@ void prompt_read_history(void) {
vstr_t vstr;
vstr_init(&vstr, 50);
vstr_printf(&vstr, "%s/.micropython.history", home);
FILE *fp = fopen(vstr_null_terminated_str(&vstr), "r");
if (fp != NULL) {
int fd = open(vstr_null_terminated_str(&vstr), O_RDONLY);
if (fd != -1) {
vstr_reset(&vstr);
for (;;) {
int c = fgetc(fp);
if (c == EOF || c == '\n') {
char c;
int sz = read(fd, &c, 1);
if (sz < 0) {
break;
}
if (sz == 0 || c == '\n') {
readline_push_history(vstr_null_terminated_str(&vstr));
if (c == EOF) {
if (sz == 0) {
break;
}
vstr_reset(&vstr);
@ -115,7 +120,7 @@ void prompt_read_history(void) {
vstr_add_byte(&vstr, c);
}
}
fclose(fp);
close(fd);
}
vstr_clear(&vstr);
}
@ -133,16 +138,18 @@ void prompt_write_history(void) {
vstr_t vstr;
vstr_init(&vstr, 50);
vstr_printf(&vstr, "%s/.micropython.history", home);
FILE *fp = fopen(vstr_null_terminated_str(&vstr), "w");
if (fp != NULL) {
int fd = open(vstr_null_terminated_str(&vstr), O_CREAT | O_TRUNC | O_WRONLY, 0644);
if (fd != -1) {
for (int i = MP_ARRAY_SIZE(MP_STATE_PORT(readline_hist)) - 1; i >= 0; i--) {
const char *line = MP_STATE_PORT(readline_hist)[i];
if (line != NULL) {
fwrite(line, 1, strlen(line), fp);
fputc('\n', fp);
int res;
res = write(fd, line, strlen(line));
res = write(fd, "\n", 1);
(void)res;
}
}
fclose(fp);
close(fd);
}
}
#elif MICROPY_USE_READLINE == 2