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Desultorily enclose programlisting tags in CDATA, to get rid of some obnoxious

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SGML-escaping.
This commit is contained in:
Alvaro Herrera
2008-12-07 23:46:39 +00:00
parent b2971e2048
commit aa7f00464d
8 changed files with 238 additions and 209 deletions
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81
doc/src/sgml/lobj.sgml
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@@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/lobj.sgml,v 1.48 2008/03/22 01:55:14 ishii Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/lobj.sgml,v 1.49 2008/12/07 23:46:39 alvherre Exp $ -->
<chapter id="largeObjects">
<title id="largeObjects-title">Large Objects</title>
@@ -457,7 +457,7 @@ SELECT lo_export(image.raster, '/tmp/motd') FROM image
<example id="lo-example">
<title>Large Objects with <application>libpq</application> Example Program</title>
<programlisting>
<programlisting><![CDATA[
/*--------------------------------------------------------------
*
* testlo.c--
@@ -467,15 +467,15 @@ SELECT lo_export(image.raster, '/tmp/motd') FROM image
*
*--------------------------------------------------------------
*/
#include &lt;stdio.h&gt;
#include &quot;libpq-fe.h&quot;
#include &quot;libpq/libpq-fs.h&quot;
#include <stdio.h>
#include "libpq-fe.h"
#include "libpq/libpq-fs.h"
#define BUFSIZE 1024
/*
* importFile
* import file &quot;in_filename&quot; into database as large object &quot;lobjOid&quot;
* import file "in_filename" into database as large object "lobjOid"
*
*/
Oid
@@ -492,9 +492,9 @@ importFile(PGconn *conn, char *filename)
* open the file to be read in
*/
fd = open(filename, O_RDONLY, 0666);
if (fd &lt; 0)
if (fd < 0)
{ /* error */
fprintf(stderr, &quot;cannot open unix file %s\n&quot;, filename);
fprintf(stderr, "cannot open unix file %s\n", filename);
}
/*
@@ -502,18 +502,18 @@ importFile(PGconn *conn, char *filename)
*/
lobjId = lo_creat(conn, INV_READ | INV_WRITE);
if (lobjId == 0)
fprintf(stderr, &quot;cannot create large object\n&quot;);
fprintf(stderr, "cannot create large object\n");
lobj_fd = lo_open(conn, lobjId, INV_WRITE);
/*
* read in from the Unix file and write to the inversion file
*/
while ((nbytes = read(fd, buf, BUFSIZE)) &gt; 0)
while ((nbytes = read(fd, buf, BUFSIZE)) > 0)
{
tmp = lo_write(conn, lobj_fd, buf, nbytes);
if (tmp &lt; nbytes)
fprintf(stderr, &quot;error while reading large object\n&quot;);
if (tmp < nbytes)
fprintf(stderr, "error while reading large object\n");
}
(void) close(fd);
@@ -531,9 +531,9 @@ pickout(PGconn *conn, Oid lobjId, int start, int len)
int nread;
lobj_fd = lo_open(conn, lobjId, INV_READ);
if (lobj_fd &lt; 0)
if (lobj_fd < 0)
{
fprintf(stderr, &quot;cannot open large object %d\n&quot;,
fprintf(stderr, "cannot open large object %d\n",
lobjId);
}
@@ -541,15 +541,15 @@ pickout(PGconn *conn, Oid lobjId, int start, int len)
buf = malloc(len + 1);
nread = 0;
while (len - nread &gt; 0)
while (len - nread > 0)
{
nbytes = lo_read(conn, lobj_fd, buf, len - nread);
buf[nbytes] = ' ';
fprintf(stderr, &quot;&gt;&gt;&gt; %s&quot;, buf);
fprintf(stderr, ">>> %s", buf);
nread += nbytes;
}
free(buf);
fprintf(stderr, &quot;\n&quot;);
fprintf(stderr, "\n");
lo_close(conn, lobj_fd);
}
@@ -563,33 +563,33 @@ overwrite(PGconn *conn, Oid lobjId, int start, int len)
int i;
lobj_fd = lo_open(conn, lobjId, INV_WRITE);
if (lobj_fd &lt; 0)
if (lobj_fd < 0)
{
fprintf(stderr, &quot;cannot open large object %d\n&quot;,
fprintf(stderr, "cannot open large object %d\n",
lobjId);
}
lo_lseek(conn, lobj_fd, start, SEEK_SET);
buf = malloc(len + 1);
for (i = 0; i &lt; len; i++)
for (i = 0; i < len; i++)
buf[i] = 'X';
buf[i] = ' ';
nwritten = 0;
while (len - nwritten &gt; 0)
while (len - nwritten > 0)
{
nbytes = lo_write(conn, lobj_fd, buf + nwritten, len - nwritten);
nwritten += nbytes;
}
free(buf);
fprintf(stderr, &quot;\n&quot;);
fprintf(stderr, "\n");
lo_close(conn, lobj_fd);
}
/*
* exportFile
* export large object &quot;lobjOid&quot; to file &quot;out_filename&quot;
* export large object "lobjOid" to file "out_filename"
*
*/
void
@@ -605,9 +605,9 @@ exportFile(PGconn *conn, Oid lobjId, char *filename)
* open the large object
*/
lobj_fd = lo_open(conn, lobjId, INV_READ);
if (lobj_fd &lt; 0)
if (lobj_fd < 0)
{
fprintf(stderr, &quot;cannot open large object %d\n&quot;,
fprintf(stderr, "cannot open large object %d\n",
lobjId);
}
@@ -615,21 +615,21 @@ exportFile(PGconn *conn, Oid lobjId, char *filename)
* open the file to be written to
*/
fd = open(filename, O_CREAT | O_WRONLY, 0666);
if (fd &lt; 0)
if (fd < 0)
{ /* error */
fprintf(stderr, &quot;cannot open unix file %s\n&quot;,
fprintf(stderr, "cannot open unix file %s\n",
filename);
}
/*
* read in from the inversion file and write to the Unix file
*/
while ((nbytes = lo_read(conn, lobj_fd, buf, BUFSIZE)) &gt; 0)
while ((nbytes = lo_read(conn, lobj_fd, buf, BUFSIZE)) > 0)
{
tmp = write(fd, buf, nbytes);
if (tmp &lt; nbytes)
if (tmp < nbytes)
{
fprintf(stderr, &quot;error while writing %s\n&quot;,
fprintf(stderr, "error while writing %s\n",
filename);
}
}
@@ -659,7 +659,7 @@ main(int argc, char **argv)
if (argc != 4)
{
fprintf(stderr, &quot;Usage: %s database_name in_filename out_filename\n&quot;,
fprintf(stderr, "Usage: %s database_name in_filename out_filename\n",
argv[0]);
exit(1);
}
@@ -676,36 +676,37 @@ main(int argc, char **argv)
/* check to see that the backend connection was successfully made */
if (PQstatus(conn) == CONNECTION_BAD)
{
fprintf(stderr, &quot;Connection to database '%s' failed.\n&quot;, database);
fprintf(stderr, &quot;%s&quot;, PQerrorMessage(conn));
fprintf(stderr, "Connection to database '%s' failed.\n", database);
fprintf(stderr, "%s", PQerrorMessage(conn));
exit_nicely(conn);
}
res = PQexec(conn, &quot;begin&quot;);
res = PQexec(conn, "begin");
PQclear(res);
printf(&quot;importing file %s\n&quot;, in_filename);
printf("importing file %s\n", in_filename);
/* lobjOid = importFile(conn, in_filename); */
lobjOid = lo_import(conn, in_filename);
/*
printf(&quot;as large object %d.\n&quot;, lobjOid);
printf("as large object %d.\n", lobjOid);
printf(&quot;picking out bytes 1000-2000 of the large object\n&quot;);
printf("picking out bytes 1000-2000 of the large object\n");
pickout(conn, lobjOid, 1000, 1000);
printf(&quot;overwriting bytes 1000-2000 of the large object with X's\n&quot;);
printf("overwriting bytes 1000-2000 of the large object with X's\n");
overwrite(conn, lobjOid, 1000, 1000);
*/
printf(&quot;exporting large object to file %s\n&quot;, out_filename);
printf("exporting large object to file %s\n", out_filename);
/* exportFile(conn, lobjOid, out_filename); */
lo_export(conn, lobjOid, out_filename);
res = PQexec(conn, &quot;end&quot;);
res = PQexec(conn, "end");
PQclear(res);
PQfinish(conn);
exit(0);
}
]]>
</programlisting>
</example>