mirror of
https://github.com/tursodatabase/libsql.git
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90 lines
2.7 KiB
C
90 lines
2.7 KiB
C
/*
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** 2022-11-20
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**
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** The author disclaims copyright to this source code. In place of
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** a legal notice, here is a blessing:
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**
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** May you do good and not evil.
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** May you find forgiveness for yourself and forgive others.
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** May you share freely, never taking more than you give.
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**
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*************************************************************************
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**
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** This source allows multiple SQLite extensions to be either: combined
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** into a single runtime-loadable library; or built into the SQLite shell
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** using a preprocessing convention set by src/shell.c.in (and shell.c).
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**
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** Presently, it combines the base64.c and base85.c extensions. However,
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** it can be used as a template for other combinations.
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**
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** Example usages:
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**
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** - Build a runtime-loadable extension from SQLite checkout directory:
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** *Nix, OSX: gcc -O2 -shared -I. -fPIC -o basexx.so ext/misc/basexx.c
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** Win32: cl /Os -I. ext/misc/basexx.c -link -dll -out:basexx.dll
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**
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** - Incorporate as built-in in sqlite3 shell:
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** *Nix, OSX with gcc on a like platform:
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** export mop1=-DSQLITE_SHELL_EXTSRC=ext/misc/basexx.c
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** export mop2=-DSQLITE_SHELL_EXTFUNCS=BASEXX
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** make sqlite3 "OPTS=$mop1 $mop2"
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** Win32 with Microsoft toolset on Windows:
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** set mop1=-DSQLITE_SHELL_EXTSRC=ext/misc/basexx.c
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** set mop2=-DSQLITE_SHELL_EXTFUNCS=BASEXX
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** set mops="OPTS=%mop1% %mop2%"
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** nmake -f Makefile.msc sqlite3.exe %mops%
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*/
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#ifndef SQLITE_SHELL_EXTFUNCS /* Guard for #include as built-in extension. */
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# include "sqlite3ext.h"
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SQLITE_EXTENSION_INIT1;
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#endif
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static void init_api_ptr(const sqlite3_api_routines *pApi){
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SQLITE_EXTENSION_INIT2(pApi);
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}
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#undef SQLITE_EXTENSION_INIT1
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#define SQLITE_EXTENSION_INIT1 /* */
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#undef SQLITE_EXTENSION_INIT2
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#define SQLITE_EXTENSION_INIT2(v) (void)v
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typedef unsigned char u8;
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#define U8_TYPEDEF
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/* These next 2 undef's are only needed because the entry point names
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* collide when formulated per the rules stated for loadable extension
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* entry point names that will be deduced from the file basenames.
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*/
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#undef sqlite3_base_init
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#define sqlite3_base_init sqlite3_base64_init
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#include "base64.c"
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#undef sqlite3_base_init
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#define sqlite3_base_init sqlite3_base85_init
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#include "base85.c"
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#ifdef _WIN32
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__declspec(dllexport)
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#endif
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int sqlite3_basexx_init(sqlite3 *db, char **pzErr,
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const sqlite3_api_routines *pApi){
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int rc1;
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int rc2;
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init_api_ptr(pApi);
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rc1 = BASE64_INIT(db);
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rc2 = BASE85_INIT(db);
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if( rc1==SQLITE_OK && rc2==SQLITE_OK ){
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BASE64_EXPOSE(db, pzErr);
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BASE64_EXPOSE(db, pzErr);
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return SQLITE_OK;
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}else{
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return SQLITE_ERROR;
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}
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}
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# define BASEXX_INIT(db) sqlite3_basexx_init(db, 0, 0)
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# define BASEXX_EXPOSE(db, pzErr) /* Not needed, ..._init() does this. */
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