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Account for lack of mmap(), getpid(), and shared memory APIs in wasi.

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FossilOrigin-Name: 80ff026fb4b2203eea53d4930c1e9bb138db951fb408739c7d5c776fb397b665
This commit is contained in:
stephan
2022-11-19 07:39:31 +00:00
parent 8cfd2c3eeb
commit 9a92d53cf5
4 changed files with 25 additions and 18 deletions
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17
src/os_unix.c
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@@ -95,7 +95,8 @@
#include <time.h>
#include <sys/time.h> /* amalgamator: keep */
#include <errno.h>
#if !defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0
#if (!defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0) \
&& !defined(SQLITE_WASI)
# include <sys/mman.h>
#endif
@@ -190,6 +191,8 @@
#ifdef SQLITE_WASI
# undef HAVE_FCHMOD
# undef HAVE_FCHOWN
# undef HAVE_MREMAP
# define HAVE_MREMAP 0
# ifndef SQLITE_DEFAULT_UNIX_VFS
# define SQLITE_DEFAULT_UNIX_VFS "unix-dotfile"
/* ^^^ should SQLITE_DEFAULT_UNIX_VFS be "unix-none"? */
@@ -214,9 +217,13 @@
# endif
#endif /* SQLITE_WASI */
#ifdef SQLITE_WASI
# define osGetpid(X) 1
#else
/* Always cast the getpid() return type for compatibility with
** kernel modules in VxWorks. */
#define osGetpid(X) (pid_t)getpid()
# define osGetpid(X) (pid_t)getpid()
#endif
/*
** Only set the lastErrno if the error code is a real error and not
@@ -528,14 +535,16 @@ static struct unix_syscall {
#endif
#define osGeteuid ((uid_t(*)(void))aSyscall[21].pCurrent)
#if !defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0
#if (!defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0) \
&& !defined(SQLITE_WASI)
{ "mmap", (sqlite3_syscall_ptr)mmap, 0 },
#else
{ "mmap", (sqlite3_syscall_ptr)0, 0 },
#endif
#define osMmap ((void*(*)(void*,size_t,int,int,int,off_t))aSyscall[22].pCurrent)
#if !defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0
#if (!defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0) \
&& !defined(SQLITE_WASI)
{ "munmap", (sqlite3_syscall_ptr)munmap, 0 },
#else
{ "munmap", (sqlite3_syscall_ptr)0, 0 },