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nshlib/nsh_console.c: Add fflush to nsh_consolewrite(). This resolves this problem:

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> cat /dev/ttyCP &
  > echo ls >/dev/ttyCP

Can't get the 'ls' result immediately, because 'cat' cmd uses nsh_consolewrite() and that uses fwrite with no fflush. We can get the 'ls' result after type '\n', because nsh will fflush output when get '\n'.
This commit is contained in:
ligd 2018-11-07 11:18:03 -06:00 committed by Gregory Nutt
parent 09691dd48f
commit 19dc7cd3b3
1 changed files with 5 additions and 0 deletions
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5
nshlib/nsh_console.c
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@ -186,6 +186,11 @@ static ssize_t nsh_consolewrite(FAR struct nsh_vtbl_s *vtbl,
_err("ERROR: [%d] Failed to send buffer: %d\n", _err("ERROR: [%d] Failed to send buffer: %d\n",
pstate->cn_outfd, errno); pstate->cn_outfd, errno);
} }
/* Flush the data to the output stream */
fflush(pstate->cn_outstream);
return ret; return ret;
#else #else
/* REVISIT: buffer may not be NUL-terminated */ /* REVISIT: buffer may not be NUL-terminated */