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Maintaining the storage layer/drivers in two languages is burdensome. Since the integration tests require the Perl storage layer/drivers we'll need them even after the core code is migrated to C. Create an interface layer so the Perl code can be removed and new storage drivers/features introduced without adding Perl equivalents. The goal is to move the integration tests to C so this interface will eventually be removed. That being the case, the interface was designed for maximum compatibility to ease the transition. The result looks a bit hacky but we'll improve it as needed until it can be retired.
109 lines
4.7 KiB
Plaintext
109 lines
4.7 KiB
Plaintext
/***********************************************************************************************************************************
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C to Perl Interface
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The following C types are mapped by the current typemap:
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'AV *', 'Boolean', 'CV *', 'FILE *', 'FileHandle', 'HV *', 'I16', 'I32', 'I8', 'IV', 'InOutStream', 'InputStream', 'NV',
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'OutputStream', 'PerlIO *', 'Result', 'STRLEN', 'SV *', 'SVREF', 'SysRet', 'SysRetLong', 'Time_t *', 'U16', 'U32', 'U8', 'UV',
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'bool', 'bool_t', 'caddr_t', 'char', 'char *', 'char **', 'const char *', 'double', 'float', 'int', 'long', 'short', 'size_t',
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'ssize_t', 'time_t', 'unsigned', 'unsigned char', 'unsigned char *', 'unsigned int', 'unsigned long', 'unsigned long *',
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'unsigned short', 'void *', 'wchar_t', 'wchar_t *'
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***********************************************************************************************************************************/
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#include "build.auto.h"
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#define PERL_NO_GET_CONTEXT
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/***********************************************************************************************************************************
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Perl includes
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Order is critical here so don't change it.
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***********************************************************************************************************************************/
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#if __GNUC__ > 4 || (__GNUC__ == 4 && (__GNUC_MINOR__ > 8 || (__GNUC_MINOR__ == 8 && __GNUC_PATCHLEVEL__ >= 0)))
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#define WARNING_MAYBE_INITIALIZED 1
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#elif __GNUC__ > 4 || (__GNUC__ == 4 && (__GNUC_MINOR__ > 6 || (__GNUC_MINOR__ == 6 && __GNUC_PATCHLEVEL__ >= 0)))
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#define WARNING_INITIALIZED 1
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#endif
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#if WARNING_MAYBE_INITIALIZED
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#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
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#elif WARNING_INITIALIZED
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#pragma GCC diagnostic ignored "-Wuninitialized"
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#endif
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#pragma GCC diagnostic ignored "-Wsign-conversion"
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#pragma GCC diagnostic ignored "-Wconversion"
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#include <XSUB.h>
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#include <EXTERN.h>
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#include <perl.h>
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#if WARNING_MAYBE_INITIALIZED
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#pragma GCC diagnostic warning "-Wmaybe-uninitialized"
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#elif WARNING_INITIALIZED
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#pragma GCC diagnostic warning "-Wuninitialized"
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#endif
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/***********************************************************************************************************************************
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C includes
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These includes are from the src directory. There is no Perl-specific code in them.
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***********************************************************************************************************************************/
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#include "common/crypto/common.h"
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#include "common/error.h"
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#include "common/io/io.h"
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#include "common/lock.h"
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#include "config/config.h"
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#include "config/define.h"
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#include "config/load.h"
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#include "config/parse.h"
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#include "perl/config.h"
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#include "postgres/pageChecksum.h"
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#include "storage/posix/storage.h"
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/***********************************************************************************************************************************
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Helper macros
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***********************************************************************************************************************************/
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#include "LibC.h"
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/***********************************************************************************************************************************
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XSH includes
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These includes define data structures that are required for the C to Perl interface but are not part of the regular C source.
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***********************************************************************************************************************************/
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#include "xs/crypto/hash.xsh"
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#include "xs/common/encode.xsh"
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#include "xs/storage/storage.xsh"
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#include "xs/storage/storageRead.xsh"
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#include "xs/storage/storageWrite.xsh"
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/***********************************************************************************************************************************
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Module definition
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***********************************************************************************************************************************/
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MODULE = pgBackRest::LibC PACKAGE = pgBackRest::LibC
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PROTOTYPES: DISABLE
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# Return UVSIZE to ensure that this Perl supports 64-bit integers
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# ----------------------------------------------------------------------------------------------------------------------------------
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I32
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libcUvSize()
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CODE:
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RETVAL = UVSIZE;
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OUTPUT:
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RETVAL
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# Exported functions and modules
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#
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# These modules should map 1-1 with C modules in src directory.
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# ----------------------------------------------------------------------------------------------------------------------------------
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INCLUDE: xs/common/encode.xs
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INCLUDE: xs/common/lock.xs
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INCLUDE: xs/config/config.xs
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INCLUDE: xs/config/configTest.xs
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INCLUDE: xs/config/define.xs
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INCLUDE: xs/crypto/hash.xs
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INCLUDE: xs/crypto/random.xs
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INCLUDE: xs/postgres/pageChecksum.xs
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INCLUDE: xs/storage/storage.xs
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INCLUDE: xs/storage/storageRead.xs
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INCLUDE: xs/storage/storageWrite.xs
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