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product-mini/nuttx: Use readline for repl mode (#469)

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The EOL of NuttX is configurable (CR/LF/CRLF), the implementation
of getline in NuttX need CR or LF as line delimiter(CRLF not supported).
Then we should use readline for better compatibility.

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>

Co-authored-by: Huang Qi <huangqi3@xiaomi.com>
This commit is contained in:
Huang Qi 2020-12-11 19:48:35 +08:00 committed by GitHub
parent 7f4e519edc
commit 619c2b383c
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1 changed files with 13 additions and 4 deletions
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17
product-mini/platforms/nuttx/main.c
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@ -10,6 +10,8 @@
#include <stdio.h> #include <stdio.h>
#include <string.h> #include <string.h>
#include <system/readline.h>
#include "bh_platform.h" #include "bh_platform.h"
#include "bh_read_file.h" #include "bh_read_file.h"
#include "wasm_export.h" #include "wasm_export.h"
@ -119,13 +121,20 @@ split_string(char *str, int *count)
static void * static void *
app_instance_repl(wasm_module_inst_t module_inst) app_instance_repl(wasm_module_inst_t module_inst)
{ {
char *cmd = NULL; size_t len = 128;
size_t len = 0; char *cmd = malloc(len);
ssize_t n; ssize_t n;
while ((printf("webassembly> "), n = getline(&cmd, &len, stdin)) != -1) { if (NULL == cmd) {
LOG_ERROR("Wasm repl cmd buffer alloc failed.\n");
return NULL;
}
while (
(printf("webassembly> "), fflush(stdout), n = std_readline(cmd, len))
!= -1) {
bh_assert(n > 0); bh_assert(n > 0);
if (cmd[n - 1] == '\n') { if ((cmd[n - 1] == '\n') || (cmd[n - 1] == '\r')) {
if (n == 1) if (n == 1)
continue; continue;
else else