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e4901d50d5
Migrate functionality from the Perl Db module to C. For now this is just enough to implement the WAL switch check. Add the dbGet() helper function to get Db objects easily. Create macros in harnessPq to make writing pq scripts easier by grouping commonly used functions together. Reviewed by Cynthia Shang.
54 lines
3.1 KiB
C
54 lines
3.1 KiB
C
/***********************************************************************************************************************************
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PostgreSQL Client
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Connect to a PostgreSQL database and run queries. This is not intended to be a general purpose client but is suitable for
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pgBackRest's limited needs. In particular, data type support is limited to text, int, and bool types so it may be necessary to add
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casts to queries to output one of these types.
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***********************************************************************************************************************************/
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#ifndef POSTGRES_QUERY_H
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#define POSTGRES_QUERY_H
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#include "common/type/string.h"
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#include "common/type/variantList.h"
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#include "common/time.h"
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/***********************************************************************************************************************************
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Object type
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***********************************************************************************************************************************/
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#define PG_CLIENT_TYPE PgClient
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#define PG_CLIENT_PREFIX pgClient
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typedef struct PgClient PgClient;
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/***********************************************************************************************************************************
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Constructor
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***********************************************************************************************************************************/
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PgClient *pgClientNew(
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const String *host, const unsigned int port, const String *database, const String *user, const TimeMSec queryTimeout);
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/***********************************************************************************************************************************
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Functions
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***********************************************************************************************************************************/
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PgClient *pgClientOpen(PgClient *this);
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VariantList *pgClientQuery(PgClient *this, const String *query);
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void pgClientClose(PgClient *this);
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PgClient *pgClientMove(PgClient *this, MemContext *parentNew);
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/***********************************************************************************************************************************
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Destructor
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***********************************************************************************************************************************/
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void pgClientFree(PgClient *this);
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/***********************************************************************************************************************************
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Macros for function logging
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***********************************************************************************************************************************/
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String *pgClientToLog(const PgClient *this);
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#define FUNCTION_LOG_PG_CLIENT_TYPE \
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PgClient *
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#define FUNCTION_LOG_PG_CLIENT_FORMAT(value, buffer, bufferSize) \
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FUNCTION_LOG_STRING_OBJECT_FORMAT(value, pgClientToLog, buffer, bufferSize)
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#endif
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