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implemented partial closing for rwpipe

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This commit is contained in:
hyung-hwan 2009-08-28 06:52:20 +00:00
parent 9d635709f3
commit 81b3d369e8
6 changed files with 116 additions and 45 deletions
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2
qse/doc/page/awk.doc
View File

@ -60,7 +60,7 @@ BEGIN {
print "11" || "sort";
#close the input as sort emits when the input is closed
close ("sort", "r");
while (("sort" || getline x) > 0) print x;
while (("sort" || getline x) > 0) print "xx:", x;
}
@endcode

27
qse/include/qse/awk/awk.h
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@ -1,5 +1,5 @@
/*
* $Id: awk.h 270 2009-08-26 12:59:08Z hyunghwan.chung $
* $Id: awk.h 271 2009-08-27 12:52:20Z hyunghwan.chung $
*
Copyright 2006-2009 Chung, Hyung-Hwan.
@ -351,11 +351,13 @@ enum qse_awk_rio_mode_t
};
typedef enum qse_awk_rio_mode_t qse_awk_rio_mode_t;
enum qse_awk_rio_close_opt_t
enum qse_awk_rio_rwcopt_t
{
QSE_AWK_RIO_CLOSE_R = (1 << 0),
QSE_AWK_RIO_CLOSE_W = (1 << 1)
QSE_AWK_RIO_CLOSE_A = 0,
QSE_AWK_RIO_CLOSE_R = 1,
QSE_AWK_RIO_CLOSE_W = 2
};
typedef enum qse_awk_rio_rwcopt_t qse_awk_rio_rwcopt_t;
/**
* The qse_awk_rio_arg_t defines the data structure passed to a runtime
@ -367,27 +369,28 @@ enum qse_awk_rio_close_opt_t
typedef struct qse_awk_rio_arg_t qse_awk_rio_arg_t;
struct qse_awk_rio_arg_t
{
qse_awk_rio_mode_t mode; /**< [IN] I/O mode */
qse_char_t* name; /**< [IN] name of I/O object */
int copt; /**< [IN] closing option */
void* handle; /**< [OUT] I/O handle set by a handler */
qse_awk_rio_mode_t mode; /**< [IN] I/O mode */
qse_char_t* name; /**< [IN] name of I/O object */
qse_awk_rio_rwcopt_t rwcopt; /**< [IN] closing option for rwpipe */
void* handle; /**< [OUT] I/O handle set by a handler */
/*-- from here down, internal use only --*/
int type;
int rwcstate; /** closing state for rwpipe */
struct
{
qse_char_t buf[2048];
qse_size_t pos;
qse_size_t len;
qse_bool_t eof;
qse_bool_t eos;
int eof;
int eos;
} in;
struct
{
qse_bool_t eof;
qse_bool_t eos;
int eof;
int eos;
} out;
struct qse_awk_rio_arg_t* next;

23
qse/lib/awk/StdAwk.cpp
View File

@ -1,5 +1,5 @@
/*
* $Id: StdAwk.cpp 258 2009-08-19 14:04:15Z hyunghwan.chung $
* $Id: StdAwk.cpp 271 2009-08-27 12:52:20Z hyunghwan.chung $
*
Copyright 2006-2009 Chung, Hyung-Hwan.
@ -315,7 +315,26 @@ int StdAwk::openPipe (Pipe& io)
int StdAwk::closePipe (Pipe& io)
{
qse_pio_close ((qse_pio_t*)io.getHandle());
qse_pio_t* pio = (qse_pio_t*)io.getHandle();
if (io.getMode() == Awk::Pipe::RW)
{
#if 0
TODO: support partial close....
rwcopt = io.getCloseRW();
if (rwcopt == Awk::Pipe::CLOSE_R)
{
qse_pio_end (pio, QSE_PIO_IN);
return 0;
}
else if (rwcopt == Awk::Pipe::CLOSE_W)
{
qse_pio_end (pio, QSE_PIO_OUT);
return 0;
}
#endif
}
qse_pio_close (pio);
return 0;
}

4
qse/lib/awk/fnc.c
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@ -1,5 +1,5 @@
/*
* $Id: fnc.c 270 2009-08-26 12:59:08Z hyunghwan.chung $
* $Id: fnc.c 271 2009-08-27 12:52:20Z hyunghwan.chung $
*
Copyright 2006-2009 Chung, Hyung-Hwan.
@ -310,7 +310,7 @@ static int fnc_close (qse_awk_rtx_t* rtx, const qse_cstr_t* fnm)
n = qse_awk_rtx_closeio (rtx, name, opt);
/* failure to close is not a critical error. instead, that is
* flagged by the return value of close().
* flagged by the return value of close().
if (n == -1 && rtx->errinf.num != QSE_AWK_EIONMNF)
{
if (a0->type != QSE_AWK_VAL_STR)

83
qse/lib/awk/rio.c
View File

@ -1,5 +1,5 @@
/*
* $Id: rio.c 270 2009-08-26 12:59:08Z hyunghwan.chung $
* $Id: rio.c 271 2009-08-27 12:52:20Z hyunghwan.chung $
*
Copyright 2006-2009 Chung, Hyung-Hwan.
@ -148,14 +148,16 @@ int qse_awk_rtx_readio (
p->type = (io_type | io_mask);
p->mode = io_mode;
p->rwcopt = QSE_AWK_RIO_CLOSE_A;
p->handle = QSE_NULL;
p->next = QSE_NULL;
p->rwcstate = 0;
p->in.buf[0] = QSE_T('\0');
p->in.pos = 0;
p->in.len = 0;
p->in.eof = QSE_FALSE;
p->in.eos = QSE_FALSE;
p->in.eof = 0;
p->in.eos = 0;
qse_awk_rtx_seterrnum (run, QSE_AWK_ENOERR, QSE_NULL);
@ -187,12 +189,12 @@ int qse_awk_rtx_readio (
* entire pattern-block matching and exeuction. */
if (x == 0)
{
p->in.eos = QSE_TRUE;
p->in.eos = 1;
return 0;
}
}
if (p->in.eos)
if (p->in.eos)
{
/* no more streams. */
return 0;
@ -259,7 +261,7 @@ int qse_awk_rtx_readio (
if (n == 0)
{
p->in.eof = QSE_TRUE;
p->in.eof = 1;
if (QSE_STR_LEN(buf) == 0) ret = 0;
else if (rs_len >= 2)
@ -507,11 +509,13 @@ int qse_awk_rtx_writeio_str (
p->type = (io_type | io_mask);
p->mode = io_mode;
p->rwcopt = QSE_AWK_RIO_CLOSE_A;
p->handle = QSE_NULL;
p->next = QSE_NULL;
p->rwcstate = 0;
p->out.eof = QSE_FALSE;
p->out.eos = QSE_FALSE;
p->out.eof = 0;
p->out.eos = 0;
qse_awk_rtx_seterrnum (run, QSE_AWK_ENOERR, QSE_NULL);
n = handler (run, QSE_AWK_RIO_OPEN, p, QSE_NULL, 0);
@ -537,7 +541,7 @@ int qse_awk_rtx_writeio_str (
* entire pattern-block matching and exeuction. */
if (n == 0)
{
p->out.eos = QSE_TRUE;
p->out.eos = 1;
return 0;
}
}
@ -569,7 +573,7 @@ int qse_awk_rtx_writeio_str (
if (n == 0)
{
p->out.eof = QSE_TRUE;
p->out.eof = 1;
return 0;
}
@ -587,7 +591,7 @@ int qse_awk_rtx_flushio (
qse_awk_rio_fun_t handler;
int io_type, /*io_mode,*/ io_mask;
qse_ssize_t n;
qse_bool_t ok = QSE_FALSE;
int ok = 0;
QSE_ASSERT (out_type >= 0 && out_type <= QSE_COUNTOF(out_type_map));
QSE_ASSERT (out_type >= 0 && out_type <= QSE_COUNTOF(out_mode_map));
@ -622,7 +626,7 @@ int qse_awk_rtx_flushio (
return -1;
}
ok = QSE_TRUE;
ok = 1;
}
p = p->next;
@ -696,14 +700,14 @@ int qse_awk_rtx_nextio_read (
/* the next stream cannot be opened.
* set the eos flags so that the next call to nextio_read
* will return 0 without executing the handler */
p->in.eos = QSE_TRUE;
p->in.eos = 1;
return 0;
}
else
{
/* as the next stream has been opened successfully,
* the eof flag should be cleared if set */
p->in.eof = QSE_FALSE;
p->in.eof = 0;
/* also the previous input buffer must be reset */
p->in.pos = 0;
@ -774,14 +778,14 @@ int qse_awk_rtx_nextio_write (
/* the next stream cannot be opened.
* set the eos flags so that the next call to nextio_write
* will return 0 without executing the handler */
p->out.eos = QSE_TRUE;
p->out.eos = 1;
return 0;
}
else
{
/* as the next stream has been opened successfully,
* the eof flag should be cleared if set */
p->out.eof = QSE_FALSE;
p->out.eof = 0;
return 1;
}
}
@ -916,19 +920,37 @@ int qse_awk_rtx_closeio (
if (qse_strcmp (p->name, name) == 0)
{
qse_awk_rio_fun_t handler;
int copt = QSE_AWK_RIO_CLOSE_R | QSE_AWK_RIO_CLOSE_W;
qse_awk_rio_rwcopt_t rwcopt = QSE_AWK_RIO_CLOSE_A;
if (opt != QSE_NULL)
{
if (opt[0] == QSE_T('r'))
{
if (p->type & MASK_RDWR) copt = QSE_AWK_RIO_CLOSE_R;
if (p->type & MASK_RDWR)
{
if (p->rwcstate != QSE_AWK_RIO_CLOSE_W)
{
/* if the write end is not
* closed, let io handler close
* the read end only. */
rwcopt = QSE_AWK_RIO_CLOSE_R;
}
}
else if (!(p->type & MASK_READ)) goto skip;
}
else
{
QSE_ASSERT (opt[0] == QSE_T('w'));
if (p->type & MASK_RDWR) copt = QSE_AWK_RIO_CLOSE_W;
if (p->type & MASK_RDWR)
{
if (p->rwcstate != QSE_AWK_RIO_CLOSE_R)
{
/* if the read end is not
* closed, let io handler close
* the write end only. */
rwcopt = QSE_AWK_RIO_CLOSE_W;
}
}
else if (!(p->type & MASK_WRITE)) goto skip;
}
}
@ -937,7 +959,7 @@ int qse_awk_rtx_closeio (
if (handler != QSE_NULL)
{
qse_awk_rtx_seterrnum (rtx, QSE_AWK_ENOERR, QSE_NULL);
p->copt = copt;
p->rwcopt = rwcopt;
if (handler (rtx, QSE_AWK_RIO_CLOSE, p, QSE_NULL, 0) <= -1)
{
/* this is not a run-time error.*/
@ -946,12 +968,20 @@ int qse_awk_rtx_closeio (
return -1;
}
}
/* TODO:
if (p->type & MASK_RDWR)
{
if partially closed don't destroy it yet...
}
*/
if (p->type & MASK_RDWR)
{
p->rwcopt = rwcopt;
if (p->rwcstate == 0 && rwcopt != 0)
{
/* if either end has not been closed.
* return success without destroying
* the internal node. rwcstate keeps
* what has been successfully closed */
p->rwcstate = rwcopt;
return 0;
}
}
if (px != QSE_NULL) px->next = p->next;
else rtx->rio.chain = p->next;
@ -986,6 +1016,7 @@ void qse_awk_rtx_cleario (qse_awk_rtx_t* run)
if (handler != QSE_NULL)
{
qse_awk_rtx_seterrnum (run, QSE_AWK_ENOERR, QSE_NULL);
run->rio.chain->rwcopt = 0;
n = handler (run, QSE_AWK_RIO_CLOSE, run->rio.chain, QSE_NULL, 0);
if (n <= -1)
{

22
qse/lib/awk/std.c
View File

@ -1,5 +1,5 @@
/*
* $Id: std.c 258 2009-08-19 14:04:15Z hyunghwan.chung $
* $Id: std.c 271 2009-08-27 12:52:20Z hyunghwan.chung $
*
Copyright 2006-2009 Chung, Hyung-Hwan.
@ -619,7 +619,25 @@ static qse_ssize_t awk_rio_pipe (
case QSE_AWK_RIO_CLOSE:
{
qse_pio_close ((qse_pio_t*)riod->handle);
qse_pio_t* pio = (qse_pio_t*)riod->handle;
if (riod->mode == QSE_AWK_RIO_PIPE_RW)
{
/* specialy treatment is needef for rwpipe.
* inspect rwcopt to see if partial closing is
* requested. */
if (riod->rwcopt == QSE_AWK_RIO_CLOSE_R)
{
qse_pio_end (pio, QSE_PIO_IN);
return 0;
}
else if (riod->rwcopt == QSE_AWK_RIO_CLOSE_W)
{
qse_pio_end (pio, QSE_PIO_OUT);
return 0;
}
}
qse_pio_close (pio);
riod->handle = QSE_NULL;
return 0;
}