Hi, Fedor
Thanks for your feedback.
I don't use any optimizations parameters.
However now I just change the variable 'session->cmd_line_' as one
std::string ptr type, then it works on Windows-7.
On Wednesday, January 22, 2014 8:04:45 PM UTC+8, Fedor Indutny wrote:
>
> Hello!
>
> I'd suspect that it is a compiler bug, seems like it thinks that
> `c_str()` is no longer required after `uv_buf_init()` call. Could you
> please try compiling with disabled optimizations to make sure that we
> are right?
>
> Cheers,
> Fedor.
>
> On Wed, Jan 22, 2014 at 1:15 PM, zhengfish <[email protected]<javascript:>>
> wrote:
> > Hi, libuv team,
> >
> > In my code, I want to init one buffer with std::string variable's value.
> > However I found I cannot call uv_buf_init with std::string directly on
> > Windows-7, if I do that, my program will quit libuv loop without any
> > warning.
> > As a comparison, I can do that on Linux.
> > My libuv version is v0.10.21.
> >
> >
> >
> > Here is my code-snippet:
> >
> >
> ------------------------------------------------------------code-snippet---------------------------------------------------------
>
>
> >
> > // callback for connect
> > void on_connect ( uv_connect_t * req, int status )
> > {
> > FUNCTION_CALL
> >
> > if ( status )
> > {
> > fprintf ( stdout, "remote connection failed, need to enable
> remote
> > service\n" );
> >
> > if ( uv_last_error ( req->handle->loop ).code != UV_ECANCELED )
> > {
> > SHOW_UV_ERROR ( req->handle->loop );
> > free ( req->data );
> > free ( req );
> > }
> > return;
> > }
> >
> > session_t * session = ( session_t * ) req->data;
> > //fprintf ( stdout, "cmd_line[%d]:\n%s\n",
> session->cmd_line_.length( ),
> > ( char * ) session->cmd_line_.c_str( ) );
> >
> > /**
> > * uv_buf_t buf[1];
> > * buf[0].len = len;
> > * buf[0].base = message;
> > */
> >
> > /* buf init */
> > #if 0
> > // Here it works on both Windows-7 and Linux
> > char buf_tmp[4096] = { 0 };
> > uv_buf_t buf = uv_buf_init ( buf_tmp, session->cmd_line_.length( )
> );
> > buf.base = ( char * ) session->cmd_line_.c_str( );
> > #else
> > // TODO
> > // It works on Linux, but dosen't work on Windows-7
> > // On Windows-7, here it will lead program quit without any warning
> or
> > error.
> > // It even will not call on_write_end() function after uv_write()
> called
> > normally.
> > uv_buf_t buf = uv_buf_init ( ( char * ) session->cmd_line_.c_str( ),
> > session->cmd_line_.length( ) );
> > #endif
> >
> > uv_stream_t * tcp = req->handle;
> >
> > uv_write_t write_req;
> >
> > int buf_count = 1;
> >
> > int rc = uv_write ( & write_req, tcp, & buf, buf_count, on_write_end
> );
> > if ( rc )
> > {
> > SHOW_UV_ERROR ( req->handle->loop );
> > fprintf ( stderr, "uv_write() called failed\n" );
> > }
> > else
> > {
> > fprintf ( stderr, "uv_write() called normally.\n" );
> > }
> > }
> >
> >
> > --
> >
> > _ __ _ _
> > ___| |__ ___ _ __ __ _ / _(_)___| |__
> > |_ / '_ \ / _ \ '_ \ / _` | | |_| / __| '_ \
> > / /| | | | __/ | | | (_| | | _| \__ \ | | |
> > /___|_| |_|\___|_| |_|\__, | |_| |_|___/_| |_|
> > |___/
> >
> > --
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