mirror of https://github.com/sqlite/sqlite
Use ioctl(F2FS_IOC_GET_FEATURES) to determine whether or not atomic batch
writes are available. FossilOrigin-Name: 532bbf1f2b1028db4e581c756533aa660e482d833caaed4eafb299ef9b584f3a
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@ -1,5 +1,5 @@
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C Fix\stypo\sin\scomment.\s\sNo\schanges\sto\scode.
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D 2017-07-21T20:29:06.248
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C Use\sioctl(F2FS_IOC_GET_FEATURES)\sto\sdetermine\swhether\sor\snot\satomic\sbatch\nwrites\sare\savailable.
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D 2017-07-21T21:06:24.650
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F Makefile.in d9873c9925917cca9990ee24be17eb9613a668012c85a343aef7e5536ae266e8
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F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
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F Makefile.msc 02b469e9dcd5b7ee63fc1fb05babc174260ee4cfa4e0ef2e48c3c6801567a016
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@ -436,7 +436,7 @@ F src/os.c add02933b1dce7a39a005b00a2f5364b763e9a24
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F src/os.h 8e976e59eb4ca1c0fca6d35ee803e38951cb0343
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F src/os_common.h b2f4707a603e36811d9b1a13278bffd757857b85
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F src/os_setup.h 0dbaea40a7d36bf311613d31342e0b99e2536586
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F src/os_unix.c eca7004f2cde959ed233951256e22aa4169c72f69b831e14276d0bdded4372f5
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F src/os_unix.c 7feae9cad46b5e43a87bf15133dd463b72ed7b8ad913833981582d8cd3f3802f
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F src/os_win.c 2a6c73eef01c51a048cc4ddccd57f981afbec18a
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F src/os_win.h 7b073010f1451abe501be30d12f6bc599824944a
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F src/pager.c a42704980ed4ce38ed75981acf12a4d34bea2419306c7ffe26940869c458df48
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@ -1637,7 +1637,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
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F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
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F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
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F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
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P 83077ec8b5804e6c709fa4f0b50afec9eae6d5b603cc4c3e8a408ed6b2bfaf28
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R b334012c21dfa06dd301dc7ad606c856
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U mistachkin
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Z fe62579b0ed14603dc9bb2d3159486da
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P 65ec077ba63ab84ab8da91033adcf4a57bb9269ebcdd10f9e6c97c265512a80c
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R 327ce51aa62d96bf2e9523d47812fe94
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U dan
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Z 311d111b16e6fbf70dad068ea69fda6d
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@ -1 +1 @@
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65ec077ba63ab84ab8da91033adcf4a57bb9269ebcdd10f9e6c97c265512a80c
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532bbf1f2b1028db4e581c756533aa660e482d833caaed4eafb299ef9b584f3a
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@ -332,6 +332,9 @@ static pid_t randomnessPid = 0;
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#define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
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#define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
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#define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
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#define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, u32)
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#define F2FS_FEATURE_ATOMIC_WRITE 0x0004
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/*
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@ -507,7 +510,7 @@ static struct unix_syscall {
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#define osLstat ((int(*)(const char*,struct stat*))aSyscall[27].pCurrent)
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{ "ioctl", (sqlite3_syscall_ptr)ioctl, 0 },
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#define osIoctl ((int(*)(int,int))aSyscall[28].pCurrent)
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#define osIoctl ((int(*)(int,int,...))aSyscall[28].pCurrent)
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}; /* End of the overrideable system calls */
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@ -3894,12 +3897,12 @@ static int unixFileControl(sqlite3_file *id, int op, void *pArg){
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static void setDeviceCharacteristics(unixFile *pFd){
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if( pFd->sectorSize==0 ){
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int res;
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u32 f = 0;
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assert( pFd->deviceCharacteristics==0 );
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/* Check for support for F2FS atomic batch writes. */
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res = osIoctl(pFd->h, F2FS_IOC_START_VOLATILE_WRITE);
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if( res==SQLITE_OK ){
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osIoctl(pFd->h, F2FS_IOC_ABORT_VOLATILE_WRITE);
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res = osIoctl(pFd->h, F2FS_IOC_GET_FEATURES, &f);
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if( res==0 && (f & F2FS_FEATURE_ATOMIC_WRITE) ){
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pFd->deviceCharacteristics =
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SQLITE_IOCAP_BATCH_ATOMIC |
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SQLITE_IOCAP_ATOMIC |
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