1 /***************************************************************************
3 * Copyright (C) Lakshya Solutions Ltd. All rights reserved. *
5 ***************************************************************************/
11 #if defined(SOLARIS) || defined(LINUX) || defined(FreeBSD)
20 #include <sys/types.h>
28 #include <sys/socket.h>
33 #include <arpa/inet.h>
34 #include <netinet/in.h>
35 #include <netinet/tcp.h>
38 #include <sys/varargs.h>
41 #include <sys/atomic.h>
49 #include <sys/errno.h>
53 #include <sys/errno.h>
56 typedef void (*sighandler_t
)(int);
60 fileOpenReadOnly
= O_RDONLY
,
61 fileOpenWriteOnly
= O_WRONLY
,
62 fileOpenReadWrite
= O_RDWR
,
63 fileOpenAppend
= O_CREAT
| O_APPEND
|O_RDWR
,
64 fileOpenCreat
= O_CREAT
|O_RDWR
,
65 // If set and fileOpenExcl is set, the
66 // open will fail if the file already exists.
67 fileOpenExcl
= O_EXCL
,
68 fileOpenTrunc
= O_TRUNC
73 mapProtRead
= PROT_READ
,
74 mapProtWrite
= PROT_WRITE
,
75 mapProcExec
= PROT_EXEC
,
76 mapProcNone
= PROT_NONE
81 mapShared
= MAP_SHARED
,
82 mapPrivate
= MAP_PRIVATE
,
84 // Interpret address exactly.
85 mapNoReserve
= MAP_NORESERVE
,
86 // Don't reserver swap space.
88 //mapAlign = MAP_ALIGN,
89 //for msync system call
95 #define MAX_FILE_LEN 1024
96 #define IDENTIFIER_LENGTH 64
97 #define ERROR_STRING_LENGTH 128
98 #define DEFAULT_VALUE_BUF_LENGTH 32
99 #define STATE_LENGTH 8
100 #define SYSTEMDB "SYSTEMDB"
101 #define DBAUSER "root"
102 #define DBAPASS "manager"
103 #define I_USER "i@1r4D_f$_a"
104 #define I_PASS "a_$f_D4r1@i"
105 #define DEFAULT_CONFIG_FILE "/etc/csql/csql.conf"
106 #define LOCK_BUCKET_SIZE 2048
107 #define STMT_BUCKET_SIZE 1023
108 #define MAX_CHUNKS 20
109 #define PAGE_SIZE Conf::config.getPageSize()
110 #define MAX_MUTEX_PER_THREAD 3
111 #define MAX_THREADS_PER_PROCESS 30
112 #define MAX_FILE_PATH_LEN 1024
113 #define CHUNK_NAME_LEN 64
114 #define LOG_ROLLOVER_SIZE 20*1024*1024
116 #define BIT(x) (1 << (x))
117 #define SETBITS(x,y) ((x) |= (y))
118 #define CLEARBITS(x,y) ((x) &= (~(y)))
119 #define SETBIT(x,y) SETBITS((x), (BIT((y))))
120 #define CLEARBIT(x,y) CLEARBITS((x), (BIT((y))))
121 #define BITSET(x,y) ((x) & (BIT(y)))
124 typedef key_t shared_memory_key
;
125 typedef int shared_memory_id
;
126 #if defined(__sparcv9)
137 static void* mmap(void* addr
, size_t len
, int prot
, int flags
, int fildes
, off_t off
);
138 static int munmap(caddr_t addr
, size_t len
);
139 static int openFile(const char *name
, FileOpenMode flags
, size_t size
);
140 static int closeFile(int fd
);
141 static int lockFile(int fd
);
142 static int unlockFile(int fd
);
143 static off_t
lseek(int fildes
, off_t offset
, int whence
);
144 static int openFileForAppend(const char* fname
, int flags
);
145 static int getFileSize(const char* fname
);
146 static size_t write(int fildes
, char *buf
, size_t size
);
147 static int msync(caddr_t addr
, size_t len
, int flags
);
148 static int fsync(int fildes
);
149 inline static size_t alignLong(size_t size
)
150 { return ((size
- 1) | (sizeof(long) - 1)) + 1;}
151 inline static size_t align(size_t size
)
152 { return ((size
- 1) | (sizeof(InUse
) - 1)) + 1;}
153 static char* encrypt(const char * key
, const char *salt
);
154 static void* memset(void *src
, int c
, size_t size
);
155 static void* memcpy(void *src
, const void *dest
, size_t size
);
156 static int memcmp(const void *s1
, const void *s2
, size_t size
);
157 static int select(int nfds
, fd_set
*readfds
, fd_set
*writefds
,
158 fd_set
*exceptfds
, struct timeval
* timeout
);
160 static int usleep(int microsecs
);
161 static int sleep(int secs
);
162 static shared_memory_id
shm_create(shared_memory_key key
, size_t size
, int flag
);
163 static shared_memory_id
shm_open(shared_memory_key key
, size_t size
, int flag
);
164 static void* shm_attach(shared_memory_id id
, const void *ptr
, int flag
);
165 static int shm_detach (void*);
166 static int shmctl(int shmid
, int cmd
);
167 inline static double floor(double val
)
168 { return ::floor(val
); }
169 static sighandler_t
signal(int signum
, sighandler_t handler
);
171 static int gettimeofday(struct timeval
*tp
);
172 static struct tm
* localtime(long *secs
);
173 static pid_t
getpid()
174 { return ::getpid(); }
175 static pthread_t
getthrid()
176 { return ::pthread_self(); }
177 static char* getenv(const char *envVarName
);
178 static int setenv(const char *envVarName
, const char *value
);
180 static int kill(pid_t pid
, int sig
);
181 static bool atobool(char *value
);
182 static pid_t
createProcess(const char* cmdName
, const char *arg0
);
184 static size_t send(int fd
, const void *buf
, size_t len
, int flags
);
185 static size_t recv(int fd
, void *buf
, size_t len
, int flags
);
186 static int gethostname(char *hostname
, size_t len
);
187 static int strmatch(char *pattern
, char *str
);
188 static int msgget(key_t key
, int oflag
);
189 static int msgsnd(int msqid
, const void *ptr
, size_t len
, int flag
);
190 static ssize_t
msgrcv(int msqid
, void *ptr
, size_t len
, long type
, int flag
);
191 static int msgctl(int msqid
, int cmd
, struct msqid_ds
*buff
);
192 static int isValidIP(char ipstr
[] );
193 static bool fileExists(char *fileName
);
194 static char* strcasestr(char *s1
, const char *s2
);
195 static int getNoOfProcessors();
196 static mode_t
umask(mode_t mask
);
197 static int fdatasync(int fd
);