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Diffstat (limited to 'doc/src/sgml/libpq.sgml')
| -rw-r--r-- | doc/src/sgml/libpq.sgml | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/doc/src/sgml/libpq.sgml b/doc/src/sgml/libpq.sgml index 0c24f2b773..229e9d5a28 100644 --- a/doc/src/sgml/libpq.sgml +++ b/doc/src/sgml/libpq.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.210 2006/05/21 20:19:23 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.211 2006/05/23 22:13:19 momjian Exp $ --> <chapter id="libpq"> <title><application>libpq</application> - C Library</title> @@ -4196,11 +4196,32 @@ options when you compile your application code. Refer to your system's documentation for information about how to build thread-enabled applications, or look in <filename>src/Makefile.global</filename> for <literal>PTHREAD_CFLAGS</> -and <literal>PTHREAD_LIBS</>. +and <literal>PTHREAD_LIBS</>. This function allows the querying of +<application>libpq</application>'s thread-safe status: </para> +<variablelist> +<varlistentry> +<term><function>PQisthreadsafe</function><indexterm><primary>PQisthreadsafe</></></term> +<listitem> +<para> + Returns the thread safety status of the <application>libpq</application> + library. +<synopsis> +int PQisthreadsafe(); +</synopsis> +</para> + +<para> + Returns 1 if the <application>libpq</application> is thead-safe and + 0 if it is not. +</para> +</listitem> +</varlistentry> +</variablelist> + <para> -One restriction is that no two threads attempt to manipulate the same +One thread restriction is that no two threads attempt to manipulate the same <structname>PGconn</> object at the same time. In particular, you cannot issue concurrent commands from different threads through the same connection object. (If you need to run concurrent commands, use |