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896be7d93a
sqlite/mptest/mptest.c
drh 896be7d93a Get the build of mptest working on mac. 
FossilOrigin-Name: a0bae686c9d7f08afac00f66067f5147be6231e0
2013-04-06 14:16:41 +00:00

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/*
** 2013-04-05
**
** 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 is a program used for testing SQLite, and specifically for testing
** the ability of independent processes to access the same SQLite database
** concurrently.
**
** Compile this program as follows:
**
** gcc -g -c -Wall sqlite3.c $(OPTS)
** gcc -g -o mptest mptest.c sqlite3.o $(LIBS)
**
** Recommended options:
**
** -DHAVE_USLEEP
** -DSQLITE_MAX_SCHEMA_RETRY=100
** -DSQLITE_NO_SYNC
** -DSQLITE_THREADSAFE=0
** -DSQLITE_OMIT_LOAD_EXTENSION
**
** Run like this:
**
** ./mptest $database $script
**
** where $database is the database to use for testing and $script is a
** test script.
*/
#include "sqlite3.h"
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <ctype.h>
/* Global data
*/
static struct Global {
char *argv0; /* Name of the executable */
const char *zVfs; /* Name of VFS to use. Often NULL meaning "default" */
char *zDbFile; /* Name of the database */
sqlite3 *db; /* Open connection to database */
char *zErrLog; /* Filename for error log */
FILE *pErrLog; /* Where to write errors */
char *zLog; /* Name of output log file */
FILE *pLog; /* Where to write log messages */
char zName[12]; /* Symbolic name of this process */
int taskId; /* Task ID. 0 means supervisor. */
int iTrace; /* Tracing level */
int bSqlTrace; /* True to trace SQL commands */
int nError; /* Number of errors */
int nTest; /* Number of --match operators */
int iTimeout; /* Milliseconds until a busy timeout */
} g;
/* Default timeout */
#define DEFAULT_TIMEOUT 10000
/*
** Print a message adding zPrefix[] to the beginning of every line.
*/
static void printWithPrefix(FILE *pOut, const char *zPrefix, const char *zMsg){
while( zMsg && zMsg[0] ){
int i;
for(i=0; zMsg[i] && zMsg[i]!='\n' && zMsg[i]!='\r'; i++){}
fprintf(pOut, "%s%.*s\n", zPrefix, i, zMsg);
zMsg += i;
while( zMsg[0]=='\n' || zMsg[0]=='\r' ) zMsg++;
}
}
/*
** Compare two pointers to strings, where the pointers might be NULL.
*/
static int safe_strcmp(const char *a, const char *b){
if( a==b ) return 0;
if( a==0 ) return -1;
if( b==0 ) return 1;
return strcmp(a,b);
}
/*
** Return TRUE if string z[] matches glob pattern zGlob[].
** Return FALSE if the pattern does not match.
**
** Globbing rules:
**
** '*' Matches any sequence of zero or more characters.
**
** '?' Matches exactly one character.
**
** [...] Matches one character from the enclosed list of
** characters.
**
** [^...] Matches one character not in the enclosed list.
**
** '#' Matches any sequence of one or more digits with an
** optional + or - sign in front
*/
int strglob(const char *zGlob, const char *z){
int c, c2;
int invert;
int seen;
while( (c = (*(zGlob++)))!=0 ){
if( c=='*' ){
while( (c=(*(zGlob++))) == '*' || c=='?' ){
if( c=='?' && (*(z++))==0 ) return 0;
}
if( c==0 ){
return 1;
}else if( c=='[' ){
while( *z && strglob(zGlob-1,z) ){
z++;
}
return (*z)!=0;
}
while( (c2 = (*(z++)))!=0 ){
while( c2!=c ){
c2 = *(z++);
if( c2==0 ) return 0;
}
if( strglob(zGlob,z) ) return 1;
}
return 0;
}else if( c=='?' ){
if( (*(z++))==0 ) return 0;
}else if( c=='[' ){
int prior_c = 0;
seen = 0;
invert = 0;
c = *(z++);
if( c==0 ) return 0;
c2 = *(zGlob++);
if( c2=='^' ){
invert = 1;
c2 = *(zGlob++);
}
if( c2==']' ){
if( c==']' ) seen = 1;
c2 = *(zGlob++);
}
while( c2 && c2!=']' ){
if( c2=='-' && zGlob[0]!=']' && zGlob[0]!=0 && prior_c>0 ){
c2 = *(zGlob++);
if( c>=prior_c && c<=c2 ) seen = 1;
prior_c = 0;
}else{
if( c==c2 ){
seen = 1;
}
prior_c = c2;
}
c2 = *(zGlob++);
}
if( c2==0 || (seen ^ invert)==0 ) return 0;
}else if( c=='#' ){
if( (z[0]=='-' || z[0]=='+') && isdigit(z[1]) ) z++;
if( !isdigit(z[0]) ) return 0;
z++;
while( isdigit(z[0]) ){ z++; }
}else{
if( c!=(*(z++)) ) return 0;
}
}
return *z==0;
}
/*
** Close output stream pOut if it is not stdout or stderr
*/
static void maybeClose(FILE *pOut){
if( pOut!=stdout && pOut!=stderr ) fclose(pOut);
}
/*
** Print an error message
*/
static void errorMessage(const char *zFormat, ...){
va_list ap;
char *zMsg;
char zPrefix[30];
va_start(ap, zFormat);
zMsg = sqlite3_vmprintf(zFormat, ap);
va_end(ap);
sqlite3_snprintf(sizeof(zPrefix), zPrefix, "%s:ERROR: ", g.zName);
if( g.pLog ){
printWithPrefix(g.pLog, zPrefix, zMsg);
fflush(g.pLog);
}
if( g.pErrLog && safe_strcmp(g.zErrLog,g.zLog) ){
printWithPrefix(g.pErrLog, zPrefix, zMsg);
fflush(g.pErrLog);
}
sqlite3_free(zMsg);
g.nError++;
}
/* Forward declaration */
static int trySql(const char*, ...);
/*
** Print an error message and then quit.
*/
static void fatalError(const char *zFormat, ...){
va_list ap;
char *zMsg;
char zPrefix[30];
va_start(ap, zFormat);
zMsg = sqlite3_vmprintf(zFormat, ap);
va_end(ap);
sqlite3_snprintf(sizeof(zPrefix), zPrefix, "%s:FATAL: ", g.zName);
if( g.pLog ){
printWithPrefix(g.pLog, zPrefix, zMsg);
fflush(g.pLog);
maybeClose(g.pLog);
}
if( g.pErrLog && safe_strcmp(g.zErrLog,g.zLog) ){
printWithPrefix(g.pErrLog, zPrefix, zMsg);
fflush(g.pErrLog);
maybeClose(g.pErrLog);
}
sqlite3_free(zMsg);
if( g.db ){
int nTry = 0;
g.iTimeout = 0;
while( trySql("UPDATE client SET wantHalt=1;")==SQLITE_BUSY
&& (nTry++)<100 ){
sqlite3_sleep(10);
}
}
sqlite3_close(g.db);
exit(1);
}
/*
** Print a log message
*/
static void logMessage(const char *zFormat, ...){
va_list ap;
char *zMsg;
char zPrefix[30];
va_start(ap, zFormat);
zMsg = sqlite3_vmprintf(zFormat, ap);
va_end(ap);
sqlite3_snprintf(sizeof(zPrefix), zPrefix, "%s: ", g.zName);
if( g.pLog ){
printWithPrefix(g.pLog, zPrefix, zMsg);
fflush(g.pLog);
}
sqlite3_free(zMsg);
}
/*
** Return the length of a string omitting trailing whitespace
*/
static int clipLength(const char *z){
int n = (int)strlen(z);
while( n>0 && isspace(z[n-1]) ){ n--; }
return n;
}
/*
** Busy handler with a g.iTimeout-millisecond timeout
*/
static int busyHandler(void *pCD, int count){
if( count*10>g.iTimeout ){
if( g.iTimeout>0 ) errorMessage("timeout after %dms", g.iTimeout);
return 0;
}
sqlite3_sleep(10);
return 1;
}
/*
** SQL Trace callback
*/
static void sqlTraceCallback(void *NotUsed1, const char *zSql){
logMessage("[%.*s]", clipLength(zSql), zSql);
}
/*
** Prepare an SQL statement. Issue a fatal error if unable.
*/
static sqlite3_stmt *prepareSql(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);
rc = sqlite3_prepare_v2(g.db, zSql, -1, &pStmt, 0);
if( rc!=SQLITE_OK ){
sqlite3_finalize(pStmt);
fatalError("%s\n%s\n", sqlite3_errmsg(g.db), zSql);
}
sqlite3_free(zSql);
return pStmt;
}
/*
** Run arbitrary SQL. Issue a fatal error on failure.
*/
static void runSql(const char *zFormat, ...){
va_list ap;
char *zSql;
int rc;
va_start(ap, zFormat);
zSql = sqlite3_vmprintf(zFormat, ap);
va_end(ap);
rc = sqlite3_exec(g.db, zSql, 0, 0, 0);
if( rc!=SQLITE_OK ){
fatalError("%s\n%s\n", sqlite3_errmsg(g.db), zSql);
}
sqlite3_free(zSql);
}
/*
** Try to run arbitrary SQL. Return success code.
*/
static int trySql(const char *zFormat, ...){
va_list ap;
char *zSql;
int rc;
va_start(ap, zFormat);
zSql = sqlite3_vmprintf(zFormat, ap);
va_end(ap);
rc = sqlite3_exec(g.db, zSql, 0, 0, 0);
sqlite3_free(zSql);
return rc;
}
/* Structure for holding an arbitrary length string
*/
typedef struct String String;
struct String {
char *z; /* the string */
int n; /* Slots of z[] used */
int nAlloc; /* Slots of z[] allocated */
};
/* Free a string */
static void stringFree(String *p){
if( p->z ) sqlite3_free(p->z);
memset(p, 0, sizeof(*p));
}
/* Append n bytes of text to a string. If n<0 append the entire string. */
static void stringAppend(String *p, const char *z, int n){
if( n<0 ) n = (int)strlen(z);
if( p->n+n>=p->nAlloc ){
int nAlloc = p->nAlloc*2 + n + 100;
char *z = sqlite3_realloc(p->z, nAlloc);
if( z==0 ) fatalError("out of memory");
p->z = z;
p->nAlloc = nAlloc;
}
memcpy(p->z+p->n, z, n);
p->n += n;
p->z[p->n] = 0;
}
/* Reset a string to an empty string */
static void stringReset(String *p){
if( p->z==0 ) stringAppend(p, " ", 1);
p->n = 0;
p->z[0] = 0;
}
/* Append a new token onto the end of the string */
static void stringAppendTerm(String *p, const char *z){
int i;
if( p->n ) stringAppend(p, " ", 1);
if( z==0 ){
stringAppend(p, "nil", 3);
return;
}
for(i=0; z[i] && !isspace(z[i]); i++){}
if( i>0 && z[i]==0 ){
stringAppend(p, z, i);
return;
}
stringAppend(p, "'", 1);
while( z[0] ){
for(i=0; z[i] && z[i]!='\''; i++){}
if( z[i] ){
stringAppend(p, z, i+1);
stringAppend(p, "'", 1);
z += i+1;
}else{
stringAppend(p, z, i);
break;
}
}
stringAppend(p, "'", 1);
}
/*
** Callback function for evalSql()
*/
static int evalCallback(void *pCData, int argc, char **argv, char **azCol){
String *p = (String*)pCData;
int i;
for(i=0; i<argc; i++) stringAppendTerm(p, argv[i]);
return 0;
}
/*
** Run arbitrary SQL and record the results in an output string
** given by the first parameter.
*/
static int evalSql(String *p, const char *zFormat, ...){
va_list ap;
char *zSql;
int rc;
char *zErrMsg = 0;
va_start(ap, zFormat);
zSql = sqlite3_vmprintf(zFormat, ap);
va_end(ap);
assert( g.iTimeout>0 );
rc = sqlite3_exec(g.db, zSql, evalCallback, p, &zErrMsg);
sqlite3_free(zSql);
if( rc ){
char zErr[30];
sqlite3_snprintf(sizeof(zErr), zErr, "error(%d)", rc);
stringAppendTerm(p, zErr);
if( zErrMsg ){
stringAppendTerm(p, zErrMsg);
sqlite3_free(zErrMsg);
}
}
return rc;
}
/*
** Look up the next task for client iClient in the database.
** Return the task script and the task number and mark that
** task as being under way.
*/
static int startScript(
int iClient, /* The client number */
char **pzScript, /* Write task script here */
int *pTaskId /* Write task number here */
){
sqlite3_stmt *pStmt = 0;
int taskId;
int rc;
int totalTime = 0;
*pzScript = 0;
g.iTimeout = 0;
while(1){
rc = trySql("BEGIN IMMEDIATE");
if( rc==SQLITE_BUSY ){
sqlite3_sleep(10);
totalTime += 10;
continue;
}
if( rc!=SQLITE_OK ){
fatalError("%s\nBEGIN IMMEDIATE", sqlite3_errmsg(g.db));
}
if( g.nError || g.nTest ){
runSql("UPDATE counters SET nError=nError+%d, nTest=nTest+%d",
g.nError, g.nTest);
g.nError = 0;
g.nTest = 0;
}
pStmt = prepareSql("SELECT 1 FROM client WHERE id=%d AND wantHalt",iClient);
rc = sqlite3_step(pStmt);
sqlite3_finalize(pStmt);
if( rc==SQLITE_ROW ){
runSql("DELETE FROM client WHERE id=%d", iClient);
runSql("COMMIT");
g.iTimeout = DEFAULT_TIMEOUT;
return SQLITE_DONE;
}
pStmt = prepareSql(
"SELECT script, id FROM task"
" WHERE client=%d AND starttime IS NULL"
" ORDER BY id LIMIT 1", iClient);
rc = sqlite3_step(pStmt);
if( rc==SQLITE_ROW ){
int n = sqlite3_column_bytes(pStmt, 0);
*pzScript = sqlite3_malloc( n+ 1 );
strcpy(*pzScript, (const char*)sqlite3_column_text(pStmt, 0));
*pTaskId = taskId = sqlite3_column_int(pStmt, 1);
sqlite3_finalize(pStmt);
runSql("UPDATE task"
" SET starttime=strftime('%%Y-%%m-%%d %%H:%%M:%%f','now')"
" WHERE id=%d;", taskId);
runSql("COMMIT;");
g.iTimeout = DEFAULT_TIMEOUT;
return SQLITE_OK;
}
sqlite3_finalize(pStmt);
if( rc==SQLITE_DONE ){
if( totalTime>30000 ){
errorMessage("Waited over 30 seconds with no work. Giving up.");
runSql("DELETE FROM client WHERE id=%d; COMMIT;", iClient);
sqlite3_close(g.db);
exit(1);
}
runSql("COMMIT;");
sqlite3_sleep(100);
totalTime += 100;
continue;
}
fatalError("%s", sqlite3_errmsg(g.db));
}
g.iTimeout = DEFAULT_TIMEOUT;
}
/*
** Mark a script as having finished. Remove the CLIENT table entry
** if bShutdown is true.
*/
static int finishScript(int iClient, int taskId, int bShutdown){
runSql("UPDATE task"
" SET endtime=strftime('%%Y-%%m-%%d %%H:%%M:%%f','now')"
" WHERE id=%d;", taskId);
if( bShutdown ){
runSql("DELETE FROM client WHERE id=%d", iClient);
}
return SQLITE_OK;
}
/*
** Start up a client process for iClient, if it is not already
** running. If the client is already running, then this routine
** is a no-op.
*/
static void startClient(int iClient){
runSql("INSERT OR IGNORE INTO client VALUES(%d,0)", iClient);
if( sqlite3_changes(g.db) ){
#if !defined(_WIN32)
char *zSys;
zSys = sqlite3_mprintf(
"%s \"%s\" --client %d --trace %d %s&",
g.argv0, g.zDbFile, iClient, g.iTrace,
g.bSqlTrace ? "--sqltrace " : "");
system(zSys);
sqlite3_free(zSys);
#endif
#if defined(_WIN32)
char *argv[10];
char zClient[20];
char zTrace[20];
argv[0] = g.argv0;
argv[1] = g.zDbFile;
argv[2] = "--client";
sqlite3_snprintf(sizeof(zClient),zClient,"%d",iClient);
argv[3] = zClient;
argv[4] = "--trace";
sqlite3_snprintf(sizeof(zTrace),zTrace,"%d",g.iTrace);
argv[5] = zTrace;
if( g.bSqlTrace ){
argv[6] = "--sqltrace";
argv[7] = 0;
}else{
argv[6] = 0;
}
_spawnv(_P_NOWAIT, g.argv0, argv);
#endif
}
}
/*
** Read the entire content of a file into memory
*/
static char *readFile(const char *zFilename){
FILE *in = fopen(zFilename, "rb");
long sz;
char *z;
if( in==0 ){
fatalError("cannot open \"%s\" for reading", zFilename);
}
fseek(in, 0, SEEK_END);
sz = ftell(in);
rewind(in);
z = sqlite3_malloc( sz+1 );
sz = (long)fread(z, 1, sz, in);
z[sz] = 0;
fclose(in);
return z;
}
/*
** Return the length of the next token.
*/
static int tokenLength(const char *z, int *pnLine){
int n = 0;
if( isspace(z[0]) || (z[0]=='/' && z[1]=='*') ){
int inC = 0;
int c;
if( z[0]=='/' ){
inC = 1;
n = 2;
}
while( (c = z[n++])!=0 ){
if( c=='\n' ) (*pnLine)++;
if( isspace(c) ) continue;
if( inC && c=='*' && z[n]=='/' ){
n++;
inC = 0;
}else if( !inC && c=='/' && z[n]=='*' ){
n++;
inC = 1;
}else if( !inC ){
break;
}
}
n--;
}else if( z[0]=='-' && z[1]=='-' ){
for(n=2; z[n] && z[n]!='\n'; n++){}
if( z[n] ){ (*pnLine)++; n++; }
}else if( z[0]=='"' || z[0]=='\'' ){
int delim = z[0];
for(n=1; z[n]; n++){
if( z[n]=='\n' ) (*pnLine)++;
if( z[n]==delim ){
n++;
if( z[n+1]!=delim ) break;
}
}
}else{
int c;
for(n=1; (c = z[n])!=0 && !isspace(c) && c!='"' && c!='\'' && c!=';'; n++){}
}
return n;
}
/*
** Copy a single token into a string buffer.
*/
static int extractToken(const char *zIn, int nIn, char *zOut, int nOut){
int i;
if( nIn<=0 ){
zOut[0] = 0;
return 0;
}
for(i=0; i<nIn && i<nOut-1 && !isspace(zIn[i]); i++){ zOut[i] = zIn[i]; }
zOut[i] = 0;
return i;
}
/*
** Find the number of characters up to the next "--end" token.
*/
static int findEnd(const char *z, int *pnLine){
int n = 0;
while( z[n] && (strncmp(z+n,"--end",5) || !isspace(z[n+5])) ){
n += tokenLength(z+n, pnLine);
}
return n;
}
/*
** Wait for a client process to complete all its tasks
*/
static void waitForClient(int iClient, int iTimeout, char *zErrPrefix){
sqlite3_stmt *pStmt;
int rc;
if( iClient>0 ){
pStmt = prepareSql(
"SELECT 1 FROM task"
" WHERE client=%d"
" AND client IN (SELECT id FROM client)"
" AND endtime IS NULL",
iClient);
}else{
pStmt = prepareSql(
"SELECT 1 FROM task"
" WHERE client IN (SELECT id FROM client)"
" AND endtime IS NULL");
}
g.iTimeout = 0;
while( ((rc = sqlite3_step(pStmt))==SQLITE_BUSY || rc==SQLITE_ROW)
&& iTimeout>0
){
sqlite3_reset(pStmt);
sqlite3_sleep(50);
iTimeout -= 50;
}
sqlite3_finalize(pStmt);
g.iTimeout = DEFAULT_TIMEOUT;
if( rc!=SQLITE_DONE ){
if( zErrPrefix==0 ) zErrPrefix = "";
if( iClient>0 ){
errorMessage("%stimeout waiting for client %d", zErrPrefix, iClient);
}else{
errorMessage("%stimeout waiting for all clients", zErrPrefix);
}
}
}
/* Maximum number of arguments to a --command */
#define MX_ARG 5
/*
** Run a script.
*/
static void runScript(
int iClient, /* The client number, or 0 for the master */
int taskId, /* The task ID for clients. 0 for master */
char *zScript, /* Text of the script */
char *zFilename /* File from which script was read. */
){
int lineno = 1;
int prevLine = 1;
int ii = 0;
int iBegin = 0;
int n, c, j;
int len;
int nArg;
String sResult;
char zCmd[30];
char zError[1000];
char azArg[MX_ARG][100];
memset(&sResult, 0, sizeof(sResult));
stringReset(&sResult);
while( (c = zScript[ii])!=0 ){
prevLine = lineno;
len = tokenLength(zScript+ii, &lineno);
if( isspace(c) || (c=='/' && zScript[ii+1]=='*') ){
ii += len;
continue;
}
if( c!='-' || zScript[ii+1]!='-' || !isalpha(zScript[ii+2]) ){
ii += len;
continue;
}
/* Run any prior SQL before processing the new --command */
if( ii>iBegin ){
char *zSql = sqlite3_mprintf("%.*s", ii-iBegin, zScript+iBegin);
evalSql(&sResult, zSql);
sqlite3_free(zSql);
iBegin = ii + len;
}
/* Parse the --command */
if( g.iTrace>=2 ) logMessage("%.*s", len, zScript+ii);
n = extractToken(zScript+ii+2, len-2, zCmd, sizeof(zCmd));
for(nArg=0; n<len-2 && nArg<MX_ARG; nArg++){
while( n<len-2 && isspace(zScript[ii+2+n]) ){ n++; }
if( n>=len-2 ) break;
n += extractToken(zScript+ii+2+n, len-2-n,
azArg[nArg], sizeof(azArg[nArg]));
}
for(j=nArg; j<MX_ARG; j++) azArg[j++][0] = 0;
/*
** --sleep N
**
** Pause for N milliseconds
*/
if( strcmp(zCmd, "sleep")==0 ){
sqlite3_sleep(atoi(azArg[0]));
}else
/*
** --exit N
**
** Exit this process. If N>0 then exit without shutting down
** SQLite. (In other words, simulate a crash.)
*/
if( strcmp(zCmd, "exit")==0 ){
int rc = atoi(azArg[0]);
finishScript(iClient, taskId, 1);
if( rc==0 ) sqlite3_close(g.db);
exit(rc);
}else
/*
** --result
**
** Reset accumulated results back to an empty string
*/
if( strcmp(zCmd, "reset")==0 ){
stringReset(&sResult);
}else
/*
** --match ANSWER...
**
** Check to see if output matches ANSWER. Report an error if not.
*/
if( strcmp(zCmd, "match")==0 ){
int jj;
char *zAns = zScript+ii;
for(jj=7; jj<len-1 && isspace(zAns[jj]); jj++){}
zAns += jj;
if( strncmp(sResult.z, zAns, len-jj-1) ){
errorMessage("line %d of %s:\nExpected [%.*s]\n Got [%s]",
prevLine, zFilename, len-jj-1, zAns, sResult.z);
}
g.nTest++;
stringReset(&sResult);
}else
/*
** --source FILENAME
**
** Run a subscript from a separate file.
*/
if( strcmp(zCmd, "source")==0 ){
char *zNewFile = azArg[0];
char *zNewScript = readFile(zNewFile);
if( g.iTrace ) logMessage("begin script [%s]\n", zNewFile);
runScript(0, 0, zNewScript, zNewFile);
sqlite3_free(zNewScript);
if( g.iTrace ) logMessage("end script [%s]\n", zNewFile);
}else
/*
** --print MESSAGE....
**
** Output the remainder of the line to the log file
*/
if( strcmp(zCmd, "print")==0 ){
int jj;
for(jj=7; jj<len && isspace(zScript[ii+jj]); jj++){}
logMessage("%.*s", len-jj, zScript+ii+jj);
}else
/*
** --start CLIENT
**
** Start up the given client.
*/
if( strcmp(zCmd, "start")==0 ){
int iNewClient = atoi(azArg[0]);
if( iNewClient>0 ){
startClient(iNewClient);
}
}else
/*
** --wait CLIENT TIMEOUT
**
** Wait until all tasks complete for the given client. If CLIENT is
** "all" then wait for all clients to complete. Wait no longer than
** TIMEOUT milliseconds (default 10,000)
*/
if( strcmp(zCmd, "wait")==0 ){
int iTimeout = nArg>=2 ? atoi(azArg[1]) : 10000;
sqlite3_snprintf(sizeof(zError),zError,"line %d of %s\n",
prevLine, zFilename);
waitForClient(atoi(azArg[0]), iTimeout, zError);
}else
/*
** --task CLIENT
** <task-content-here>
** --end
**
** Assign work to a client. Start the client if it is not running
** already.
*/
if( strcmp(zCmd, "task")==0 ){
int iTarget = atoi(azArg[0]);
int iEnd;
char *zTask;
iEnd = findEnd(zScript+ii+len, &lineno);
if( iTarget<0 ){
errorMessage("line %d of %s: bad client number: %d",
prevLine, zFilename, iTarget);
}else{
zTask = sqlite3_mprintf("%.*s", iEnd, zScript+ii+len);
startClient(iTarget);
runSql("INSERT INTO task(client,script)"
" VALUES(%d,'%q')", iTarget, zTask);
sqlite3_free(zTask);
}
iEnd += tokenLength(zScript+ii+len+iEnd, &lineno);
len += iEnd;
iBegin = ii+len;
}else
/* error */{
errorMessage("line %d of %s: unknown command --%s",
prevLine, zFilename, zCmd);
}
ii += len;
}
if( iBegin<ii ){
char *zSql = sqlite3_mprintf("%.*s", ii-iBegin, zScript+iBegin);
runSql(zSql);
sqlite3_free(zSql);
}
stringFree(&sResult);
}
/*
** Look for a command-line option. If present, return a pointer.
** Return NULL if missing.
**
** hasArg==0 means the option is a flag. It is either present or not.
** hasArg==1 means the option has an argument. Return a pointer to the
** argument.
*/
static char *findOption(
char **azArg,
int *pnArg,
const char *zOption,
int hasArg
){
int i, j;
char *zReturn = 0;
int nArg = *pnArg;
assert( hasArg==0 || hasArg==1 );
for(i=0; i<nArg; i++){
const char *z;
if( i+hasArg >= nArg ) break;
z = azArg[i];
if( z[0]!='-' ) continue;
z++;
if( z[0]=='-' ){
if( z[1]==0 ) break;
z++;
}
if( strcmp(z,zOption)==0 ){
if( hasArg && i==nArg-1 ){
fatalError("command-line option \"--%s\" requires an argument", z);
}
if( hasArg ){
zReturn = azArg[i+1];
}else{
zReturn = azArg[i];
}
j = i+1+(hasArg!=0);
while( j<nArg ) azArg[i++] = azArg[j++];
*pnArg = i;
return zReturn;
}
}
return zReturn;
}
/* Print a usage message for the program and exit */
static void usage(const char *argv0){
int i;
const char *zTail = argv0;
for(i=0; argv0[i]; i++){
if( argv0[i]=='/' ) zTail = argv0+i+1;
}
fprintf(stderr,"Usage: %s DATABASE ?OPTIONS? ?SCRIPT?\n", zTail);
exit(1);
}
/* Report on unrecognized arguments */
static void unrecognizedArguments(
const char *argv0,
int nArg,
char **azArg
){
int i;
fprintf(stderr,"%s: unrecognized arguments:", argv0);
for(i=0; i<nArg; i++){
fprintf(stderr," %s", azArg[i]);
}
fprintf(stderr,"\n");
exit(1);
}
int main(int argc, char **argv){
const char *zClient;
int iClient;
int n;
int openFlags = SQLITE_OPEN_READWRITE;
int rc;
char *zScript;
int taskId;
const char *zTrace;
g.argv0 = argv[0];
g.iTrace = 1;
if( argc<2 ) usage(argv[0]);
g.zDbFile = argv[1];
n = argc-2;
sqlite3_snprintf(sizeof(g.zName), g.zName, "mptest");
g.zVfs = findOption(argv+2, &n, "vfs", 1);
zClient = findOption(argv+2, &n, "client", 1);
g.zErrLog = findOption(argv+2, &n, "errlog", 1);
g.zLog = findOption(argv+2, &n, "log", 1);
zTrace = findOption(argv+2, &n, "trace", 1);
if( zTrace ) g.iTrace = atoi(zTrace);
if( findOption(argv+2, &n, "quiet", 0)!=0 ) g.iTrace = 0;
g.bSqlTrace = findOption(argv+2, &n, "sqltrace", 0)!=0;
if( g.zErrLog ){
g.pErrLog = fopen(g.zErrLog, "a");
}else{
g.pErrLog = stderr;
}
if( g.zLog ){
g.pLog = fopen(g.zLog, "a");
}else{
g.pLog = stdout;
}
if( zClient ){
iClient = atoi(zClient);
if( iClient<1 ) fatalError("illegal client number: %d\n", iClient);
sqlite3_snprintf(sizeof(g.zName), g.zName, "client%02d", iClient);
}else{
iClient = 0;
unlink(g.zDbFile);
openFlags |= SQLITE_OPEN_CREATE;
}
rc = sqlite3_open_v2(g.zDbFile, &g.db, openFlags, g.zVfs);
if( rc ) fatalError("cannot open [%s]", g.zDbFile);
sqlite3_busy_handler(g.db, busyHandler, 0);
g.iTimeout = DEFAULT_TIMEOUT;
if( g.bSqlTrace ) sqlite3_trace(g.db, sqlTraceCallback, 0);
if( iClient>0 ){
if( n>0 ) unrecognizedArguments(argv[0], n, argv+2);
if( g.iTrace ) logMessage("start-client");
while(1){
char zTaskName[50];
rc = startScript(iClient, &zScript, &taskId);
if( rc==SQLITE_DONE ) break;
if( g.iTrace ) logMessage("begin task %d", taskId);
sqlite3_snprintf(sizeof(zTaskName), zTaskName, "client%02d-task-%d",
iClient, taskId);
runScript(iClient, taskId, zScript, zTaskName);
if( g.iTrace ) logMessage("end task %d", taskId);
finishScript(iClient, taskId, 0);
sqlite3_sleep(10);
}
if( g.iTrace ) logMessage("end-client");
}else{
sqlite3_stmt *pStmt;
int iTimeout;
if( n==0 ){
fatalError("missing script filename");
}
if( n>1 ) unrecognizedArguments(argv[0], n, argv+2);
runSql(
"CREATE TABLE task(\n"
" id INTEGER PRIMARY KEY,\n"
" client INTEGER,\n"
" starttime DATE,\n"
" endtime DATE,\n"
" script TEXT\n"
");"
"CREATE INDEX task_i1 ON task(client, starttime);\n"
"CREATE INDEX task_i2 ON task(client, endtime);\n"
"CREATE TABLE counters(nError,nTest);\n"
"INSERT INTO counters VALUES(0,0);\n"
"CREATE TABLE client(id INTEGER PRIMARY KEY, wantHalt);\n"
);
zScript = readFile(argv[2]);
if( g.iTrace ) logMessage("begin script [%s]\n", argv[2]);
runScript(0, 0, zScript, argv[2]);
sqlite3_free(zScript);
if( g.iTrace ) logMessage("end script [%s]\n", argv[2]);
waitForClient(0, 2000, "during shutdown...\n");
trySql("UPDATE client SET wantHalt=1");
sqlite3_sleep(10);
g.iTimeout = 0;
iTimeout = 1000;
while( ((rc = trySql("SELECT 1 FROM client"))==SQLITE_BUSY
|| rc==SQLITE_ROW) && iTimeout>0 ){
sqlite3_sleep(10);
iTimeout -= 10;
}
sqlite3_sleep(100);
pStmt = prepareSql("SELECT nError, nTest FROM counters");
iTimeout = 1000;
while( (rc = sqlite3_step(pStmt))==SQLITE_BUSY && iTimeout>0 ){
sqlite3_sleep(10);
iTimeout -= 10;
}
if( rc==SQLITE_ROW ){
g.nError += sqlite3_column_int(pStmt, 0);
g.nTest += sqlite3_column_int(pStmt, 1);
}
sqlite3_finalize(pStmt);
}
sqlite3_close(g.db);
maybeClose(g.pLog);
maybeClose(g.pErrLog);
if( iClient==0 ){
printf("Summary: %d errors in %d tests\n", g.nError, g.nTest);
}
return g.nError>0;
}
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