[sql] Remove SQLite 3.10.2 reference directory.

third_party/sqlite/sqlite-src-3100200/test/threadtest4.c

Index: third_party/sqlite/sqlite-src-3100200/test/threadtest4.c
diff --git a/third_party/sqlite/sqlite-src-3100200/test/threadtest4.c b/third_party/sqlite/sqlite-src-3100200/test/threadtest4.c
deleted file mode 100644
index da5ce75f051888c908eea952dcb17f39b3ac9456..0000000000000000000000000000000000000000
--- a/third_party/sqlite/sqlite-src-3100200/test/threadtest4.c
+++ /dev/null
@@ -1,484 +0,0 @@
-/*
-** 2014-12-11
-**
-** The author disclaims copyright to this source code.  In place of
-** a legal notice, here is a blessing:
-**
-**    May you do good and not evil.
-**    May you find forgiveness for yourself and forgive others.
-**    May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This file implements a simple standalone program used to stress the
-** SQLite library when accessing the same set of databases simultaneously
-** from multiple threads in shared-cache mode.
-**
-** This test program runs on unix-like systems only.  It uses pthreads.
-** To compile:
-**
-**     gcc -g -Wall -I. threadtest4.c sqlite3.c -ldl -lpthread
-**
-** To run:
-**
-**     ./a.out 10
-**
-** The argument is the number of threads.  There are also options, such
-** as -wal and -multithread and -serialized.
-**
-** Consider also compiling with clang instead of gcc and adding the
-** -fsanitize=thread option.
-*/
-#include "sqlite3.h"
-#include <pthread.h>
-#include <sched.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdarg.h>
-
-/*
-** An instance of the following structure is passed into each worker
-** thread.
-*/
-typedef struct WorkerInfo WorkerInfo;
-struct WorkerInfo {
-  int tid;                    /* Thread ID */
-  int nWorker;                /* Total number of workers */
-  unsigned wkrFlags;          /* Flags */
-  sqlite3 *mainDb;            /* Database connection of the main thread */
-  sqlite3 *db;                /* Database connection of this thread */
-  int nErr;                   /* Number of errors seen by this thread */
-  int nTest;                  /* Number of tests run by this thread */
-  char *zMsg;                 /* Message returned by this thread */
-  pthread_t id;               /* Thread id */
-  pthread_mutex_t *pWrMutex;  /* Hold this mutex while writing */
-};
-
-/*
-** Allowed values for WorkerInfo.wkrFlags
-*/
-#define TT4_SERIALIZED    0x0000001   /* The --serialized option is used */
-#define TT4_WAL           0x0000002   /* WAL mode in use */
-#define TT4_TRACE         0x0000004   /* Trace activity */
-
-
-/*
-** Report an OOM error and die if the argument is NULL
-*/
-static void check_oom(void *x){
-  if( x==0 ){
-    fprintf(stderr, "out of memory\n");
-    exit(1);
-  }
-}
-
-/*
-** Allocate memory.  If the allocation fails, print an error message and
-** kill the process.
-*/
-static void *safe_malloc(int sz){
-  void *x = sqlite3_malloc(sz>0?sz:1);
-  check_oom(x);
-  return x;
-}
-
-/*
-** Print a trace message for a worker
-*/
-static void worker_trace(WorkerInfo *p, const char *zFormat, ...){
-  va_list ap;
-  char *zMsg;
-  if( (p->wkrFlags & TT4_TRACE)==0 ) return;
-  va_start(ap, zFormat);
-  zMsg = sqlite3_vmprintf(zFormat, ap);
-  check_oom(zMsg);
-  va_end(ap);
-  fprintf(stderr, "TRACE(%02d): %s\n", p->tid, zMsg);
-  sqlite3_free(zMsg);
-}
-
-/*
-** Prepare a single SQL query
-*/
-static sqlite3_stmt *prep_sql(sqlite3 *db, const char *zFormat, ...){
-  va_list ap;
-  char *zSql;
-  int rc;
-  sqlite3_stmt *pStmt = 0;
-
-  va_start(ap, zFormat);
-  zSql = sqlite3_vmprintf(zFormat, ap);
-  va_end(ap);
-  check_oom(zSql);
-  rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
-  if( rc!=SQLITE_OK ){
-    fprintf(stderr, "SQL error (%d,%d): %s\nWhile preparing: [%s]\n",
-            rc, sqlite3_extended_errcode(db), sqlite3_errmsg(db), zSql);
-    exit(1);
-  }
-  sqlite3_free(zSql);
-  return pStmt;
-}
-
-/*
-** Run a SQL statements.  Panic if unable.
-*/
-static void run_sql(WorkerInfo *p, const char *zFormat, ...){
-  va_list ap;
-  char *zSql;
-  int rc;
-  sqlite3_stmt *pStmt = 0;
-  int nRetry = 0;
-
-  va_start(ap, zFormat);
-  zSql = sqlite3_vmprintf(zFormat, ap);
-  va_end(ap);
-  check_oom(zSql);
-  rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
-  if( rc!=SQLITE_OK ){
-    fprintf(stderr, "SQL error (%d,%d): %s\nWhile preparing: [%s]\n",
-            rc, sqlite3_extended_errcode(p->db), sqlite3_errmsg(p->db), zSql);
-    exit(1);
-  }
-  worker_trace(p, "running [%s]", zSql);
-  while( (rc = sqlite3_step(pStmt))!=SQLITE_DONE ){
-    if( (rc&0xff)==SQLITE_BUSY || (rc&0xff)==SQLITE_LOCKED ){
-      sqlite3_reset(pStmt);
-      nRetry++;
-      if( nRetry<10 ){
-        worker_trace(p, "retry %d for [%s]", nRetry, zSql);
-        sched_yield();
-        continue;
-      }else{
-        fprintf(stderr, "Deadlock in thread %d while running [%s]\n",
-                p->tid, zSql);
-        exit(1);
-      }
-    }
-    if( rc!=SQLITE_ROW ){
-      fprintf(stderr, "SQL error (%d,%d): %s\nWhile running [%s]\n",
-              rc, sqlite3_extended_errcode(p->db), sqlite3_errmsg(p->db), zSql);
-      exit(1);
-    }
-  }
-  sqlite3_free(zSql);
-  sqlite3_finalize(pStmt);
-}
-
-
-/*
-** Open the database connection for WorkerInfo.  The order in which
-** the files are opened is a function of the tid value.
-*/
-static void worker_open_connection(WorkerInfo *p, int iCnt){
-  char *zFile;
-  int x;
-  int rc;
-  static const unsigned char aOrder[6][3] = {
-    { 1, 2, 3},
-    { 1, 3, 2},
-    { 2, 1, 3},
-    { 2, 3, 1},
-    { 3, 1, 2},
-    { 3, 2, 1}
-  };
-  x = (p->tid + iCnt) % 6;
-  zFile = sqlite3_mprintf("tt4-test%d.db", aOrder[x][0]);
-  check_oom(zFile);
-  worker_trace(p, "open %s", zFile);
-  rc = sqlite3_open_v2(zFile, &p->db,
-                       SQLITE_OPEN_READWRITE|SQLITE_OPEN_SHAREDCACHE, 0);
-  if( rc!=SQLITE_OK ){
-    fprintf(stderr, "sqlite_open_v2(%s) failed on thread %d\n",
-            zFile, p->tid);
-    exit(1);
-  }
-  sqlite3_free(zFile);
-  run_sql(p, "PRAGMA read_uncommitted=ON;");
-  sqlite3_busy_timeout(p->db, 10000);
-  run_sql(p, "PRAGMA synchronous=OFF;");
-  run_sql(p, "ATTACH 'tt4-test%d.db' AS aux1", aOrder[x][1]);
-  run_sql(p, "ATTACH 'tt4-test%d.db' AS aux2", aOrder[x][2]);
-}
-
-/*
-** Close the worker database connection
-*/
-static void worker_close_connection(WorkerInfo *p){
-  if( p->db ){
-    worker_trace(p, "close");
-    sqlite3_close(p->db);
-    p->db = 0;
-  }
-}
-
-/*
-** Delete all content in the three databases associated with a
-** single thread.  Make this happen all in a single transaction if
-** inTrans is true, or separately for each database if inTrans is
-** false.
-*/
-static void worker_delete_all_content(WorkerInfo *p, int inTrans){
-  if( inTrans ){
-    pthread_mutex_lock(p->pWrMutex);
-    run_sql(p, "BEGIN");
-    run_sql(p, "DELETE FROM t1 WHERE tid=%d", p->tid);
-    run_sql(p, "DELETE FROM t2 WHERE tid=%d", p->tid);
-    run_sql(p, "DELETE FROM t3 WHERE tid=%d", p->tid);
-    run_sql(p, "COMMIT");
-    pthread_mutex_unlock(p->pWrMutex);
-    p->nTest++;
-  }else{
-    pthread_mutex_lock(p->pWrMutex);
-    run_sql(p, "DELETE FROM t1 WHERE tid=%d", p->tid);
-    pthread_mutex_unlock(p->pWrMutex);
-    p->nTest++;
-    pthread_mutex_lock(p->pWrMutex);
-    run_sql(p, "DELETE FROM t2 WHERE tid=%d", p->tid);
-    pthread_mutex_unlock(p->pWrMutex);
-    p->nTest++;
-    pthread_mutex_lock(p->pWrMutex);
-    run_sql(p, "DELETE FROM t3 WHERE tid=%d", p->tid);
-    pthread_mutex_unlock(p->pWrMutex);
-    p->nTest++;
-  }
-}
-
-/*
-** Create rows mn through mx in table iTab for the given worker
-*/
-static void worker_add_content(WorkerInfo *p, int mn, int mx, int iTab){
-  char *zTabDef;
-  switch( iTab ){
-    case 1:  zTabDef = "t1(tid,sp,a,b,c)";  break;
-    case 2:  zTabDef = "t2(tid,sp,d,e,f)";  break;
-    case 3:  zTabDef = "t3(tid,sp,x,y,z)";  break;
-  }
-  pthread_mutex_lock(p->pWrMutex);
-  run_sql(p, 
-     "WITH RECURSIVE\n"
-     " c(i) AS (VALUES(%d) UNION ALL SELECT i+1 FROM c WHERE i<%d)\n"
-     "INSERT INTO %s SELECT %d, zeroblob(3000), i, printf('%%d',i), i FROM c;",
-     mn, mx, zTabDef, p->tid
-  );
-  pthread_mutex_unlock(p->pWrMutex);
-  p->nTest++;
-}
-
-/*
-** Set an error message on a worker
-*/
-static void worker_error(WorkerInfo *p, const char *zFormat, ...){
-  va_list ap;
-  p->nErr++;
-  sqlite3_free(p->zMsg);
-  va_start(ap, zFormat);
-  p->zMsg = sqlite3_vmprintf(zFormat, ap);
-  va_end(ap);
-}
-
-/*
-** Each thread runs the following function.
-*/
-static void *worker_thread(void *pArg){
-  WorkerInfo *p = (WorkerInfo*)pArg;
-  int iOuter;
-  int i;
-  int rc;
-  sqlite3_stmt *pStmt;
-
-  printf("worker %d startup\n", p->tid);  fflush(stdout);
-  for(iOuter=1; iOuter<=p->nWorker; iOuter++){
-    worker_open_connection(p, iOuter);
-    for(i=0; i<4; i++){
-      worker_add_content(p, i*100+1, (i+1)*100, (p->tid+iOuter)%3 + 1);
-      worker_add_content(p, i*100+1, (i+1)*100, (p->tid+iOuter+1)%3 + 1);
-      worker_add_content(p, i*100+1, (i+1)*100, (p->tid+iOuter+2)%3 + 1);
-    }
-
-    pStmt = prep_sql(p->db, "SELECT count(a) FROM t1 WHERE tid=%d", p->tid);
-    worker_trace(p, "query [%s]", sqlite3_sql(pStmt));
-    rc = sqlite3_step(pStmt);
-    if( rc!=SQLITE_ROW ){
-      worker_error(p, "Failed to step: %s", sqlite3_sql(pStmt));
-    }else if( sqlite3_column_int(pStmt, 0)!=400 ){
-      worker_error(p, "Wrong result: %d", sqlite3_column_int(pStmt,0));
-    }
-    sqlite3_finalize(pStmt);
-    if( p->nErr ) break;
-
-    if( ((iOuter+p->tid)%3)==0 ){
-      sqlite3_db_release_memory(p->db);
-      p->nTest++;
-    }
-
-    pthread_mutex_lock(p->pWrMutex);
-    run_sql(p, "BEGIN;");
-    run_sql(p, "UPDATE t1 SET c=NULL WHERE a=55");
-    run_sql(p, "UPDATE t2 SET f=NULL WHERE d=42");
-    run_sql(p, "UPDATE t3 SET z=NULL WHERE x=31");
-    run_sql(p, "ROLLBACK;");
-    p->nTest++;
-    pthread_mutex_unlock(p->pWrMutex);
-
-
-    if( iOuter==p->tid ){
-      pthread_mutex_lock(p->pWrMutex);
-      run_sql(p, "VACUUM");
-      pthread_mutex_unlock(p->pWrMutex);
-    }
-
-    pStmt = prep_sql(p->db,
-       "SELECT t1.rowid, t2.rowid, t3.rowid"
-       "  FROM t1, t2, t3"
-       " WHERE t1.tid=%d AND t2.tid=%d AND t3.tid=%d"
-       "   AND t1.a<>t2.d AND t2.d<>t3.x"
-       " ORDER BY 1, 2, 3"
-       ,p->tid, p->tid, p->tid);
-    worker_trace(p, "query [%s]", sqlite3_sql(pStmt));
-    for(i=0; i<p->nWorker; i++){
-      rc = sqlite3_step(pStmt);
-      if( rc!=SQLITE_ROW ){
-        worker_error(p, "Failed to step: %s", sqlite3_sql(pStmt));
-        break;
-      }
-      sched_yield();
-    }
-    sqlite3_finalize(pStmt);
-    if( p->nErr ) break;
-
-    worker_delete_all_content(p, (p->tid+iOuter)%2);
-    worker_close_connection(p);
-    p->db = 0;
-  }
-  worker_close_connection(p);
-  printf("worker %d finished\n", p->tid); fflush(stdout);
-  return 0;
-}
-
-int main(int argc, char **argv){
-  int nWorker = 0;         /* Number of worker threads */
-  int i;                   /* Loop counter */
-  WorkerInfo *aInfo;       /* Information for each worker */
-  unsigned wkrFlags = 0;   /* Default worker flags */
-  int nErr = 0;            /* Number of errors */
-  int nTest = 0;           /* Number of tests */
-  int rc;                  /* Return code */
-  sqlite3 *db = 0;         /* Main database connection */
-  pthread_mutex_t wrMutex; /* The write serialization mutex */
-  WorkerInfo infoTop;      /* WorkerInfo for the main thread */
-  WorkerInfo *p;           /* Pointer to infoTop */
-
-  sqlite3_config(SQLITE_CONFIG_MULTITHREAD);
-  for(i=1; i<argc; i++){
-    const char *z = argv[i];
-    if( z[0]=='-' ){
-      if( z[1]=='-' && z[2]!=0 ) z++;
-      if( strcmp(z,"-multithread")==0 ){
-        sqlite3_config(SQLITE_CONFIG_MULTITHREAD);
-        wkrFlags &= ~TT4_SERIALIZED;
-      }else if( strcmp(z,"-serialized")==0 ){
-        sqlite3_config(SQLITE_CONFIG_SERIALIZED);
-        wkrFlags |= TT4_SERIALIZED;
-      }else if( strcmp(z,"-wal")==0 ){
-        wkrFlags |= TT4_WAL;
-      }else if( strcmp(z,"-trace")==0 ){
-        wkrFlags |= TT4_TRACE;
-      }else{
-        fprintf(stderr, "unknown command-line option: %s\n", argv[i]);
-        exit(1);
-      }
-    }else if( z[0]>='1' && z[0]<='9' && nWorker==0 ){
-      nWorker = atoi(z);
-      if( nWorker<2 ){
-        fprintf(stderr, "minimum of 2 threads\n");
-        exit(1);
-      }
-    }else{
-      fprintf(stderr, "extra command-line argument: \"%s\"\n", argv[i]);
-      exit(1);
-    }
-  }
-  if( nWorker==0 ){ 
-    fprintf(stderr,
-       "usage:  %s ?OPTIONS? N\n"
-       "N is the number of threads and must be at least 2.\n"
-       "Options:\n"
-       "  --serialized\n"
-       "  --multithread\n"
-       "  --wal\n"
-       "  --trace\n"
-       ,argv[0]
-    );
-    exit(1);
-  }
-  if( !sqlite3_threadsafe() ){
-    fprintf(stderr, "requires a threadsafe build of SQLite\n");
-    exit(1);
-  }
-  sqlite3_initialize();
-  sqlite3_enable_shared_cache(1);
-  pthread_mutex_init(&wrMutex, 0);
-
-  /* Initialize the test database files */
-  (void)unlink("tt4-test1.db");
-  (void)unlink("tt4-test2.db");
-  (void)unlink("tt4-test3.db");
-  rc = sqlite3_open("tt4-test1.db", &db);
-  if( rc!=SQLITE_OK ){
-    fprintf(stderr, "Unable to open test database: tt4-test2.db\n");
-    exit(1);
-  }
-  memset(&infoTop, 0, sizeof(infoTop));
-  infoTop.db = db;
-  infoTop.wkrFlags = wkrFlags;
-  p = &infoTop;
-  if( wkrFlags & TT4_WAL ){
-    run_sql(p, "PRAGMA journal_mode=WAL");
-  }
-  run_sql(p, "PRAGMA synchronous=OFF");
-  run_sql(p, "CREATE TABLE IF NOT EXISTS t1(tid INTEGER, sp, a, b, c)");
-  run_sql(p, "CREATE INDEX t1tid ON t1(tid)");
-  run_sql(p, "CREATE INDEX t1ab ON t1(a,b)");
-  run_sql(p, "ATTACH 'tt4-test2.db' AS 'test2'");
-  run_sql(p, "CREATE TABLE IF NOT EXISTS test2.t2(tid INTEGER, sp, d, e, f)");
-  run_sql(p, "CREATE INDEX test2.t2tid ON t2(tid)");
-  run_sql(p, "CREATE INDEX test2.t2de ON t2(d,e)");
-  run_sql(p, "ATTACH 'tt4-test3.db' AS 'test3'");
-  run_sql(p, "CREATE TABLE IF NOT EXISTS test3.t3(tid INTEGER, sp, x, y, z)");
-  run_sql(p, "CREATE INDEX test3.t3tid ON t3(tid)");
-  run_sql(p, "CREATE INDEX test3.t3xy ON t3(x,y)");
-  aInfo = safe_malloc( sizeof(*aInfo)*nWorker );
-  memset(aInfo, 0, sizeof(*aInfo)*nWorker);
-  for(i=0; i<nWorker; i++){
-    aInfo[i].tid = i+1;
-    aInfo[i].nWorker = nWorker;
-    aInfo[i].wkrFlags = wkrFlags;
-    aInfo[i].mainDb = db;
-    aInfo[i].pWrMutex = &wrMutex;
-    rc = pthread_create(&aInfo[i].id, 0, worker_thread, &aInfo[i]);
-    if( rc!=0 ){
-      fprintf(stderr, "thread creation failed for thread %d\n", i+1);
-      exit(1);
-    }
-    sched_yield();
-  }
-  for(i=0; i<nWorker; i++){
-    pthread_join(aInfo[i].id, 0);
-    printf("Joined thread %d: %d errors in %d tests",
-           aInfo[i].tid, aInfo[i].nErr, aInfo[i].nTest);
-    if( aInfo[i].zMsg ){
-      printf(": %s\n", aInfo[i].zMsg);
-    }else{
-      printf("\n");
-    }
-    nErr += aInfo[i].nErr;
-    nTest += aInfo[i].nTest;
-    fflush(stdout);
-  }
-  sqlite3_close(db);
-  sqlite3_free(aInfo);
-  printf("Total %d errors in %d tests\n", nErr, nTest);
-  return nErr;
-}