ULog::ULog(const UString& path, uint32_t _size, const char* dir_log_gz) : UFile(path)
{
U_TRACE_REGISTER_OBJECT(0, ULog, "%.*S,%u,%S", U_STRING_TO_TRACE(path), _size, dir_log_gz)
log_gzip_sz = 0;
U_Log_start_stop_msg(this) = false;
if (UFile::getPath().equal(U_CONSTANT_TO_PARAM("syslog")))
{
lock = 0;
ptr_log_data = 0;
# ifdef USE_LIBZ
buf_path_compress = 0;
# endif
U_Log_syslog(this) = true;
# ifndef __MINGW32__
U_SYSCALL_VOID(openlog, "%S,%d,%d", u_progname, LOG_PID, LOG_LOCAL0);
# endif
return;
}
if (UFile::creat(O_RDWR | O_APPEND, 0664) == false)
{
U_ERROR("cannot creat log file %.*S", U_FILE_TO_TRACE(*this));
return;
}
ptr_log_data = U_MALLOC_TYPE(log_data);
ptr_log_data->file_ptr = 0;
if (_size)
{
uint32_t file_size = UFile::size();
bool bsize = (file_size != _size);
U_INTERNAL_DUMP("bsize = %b", bsize)
if ((bsize && UFile::ftruncate(_size) == false) ||
UFile::memmap(PROT_READ | PROT_WRITE) == false)
{
U_ERROR("cannot init log file %.*S", U_FILE_TO_TRACE(*this));
return;
}
if (bsize) ptr_log_data->file_ptr = file_size; // append mode
else
{
// NB: we can have a previous crash without resizing the file or we are an other process (apache like log)...
char* ptr = (char*) u_find(UFile::map, file_size, U_CONSTANT_TO_PARAM(U_MARK_END));
U_INTERNAL_DUMP("ptr = %p", ptr)
if (ptr)
{
ptr_log_data->file_ptr = ptr - UFile::map;
// NB: we can be an other process that manage this file (apache like log)...
(void) memcpy(ptr, U_CONSTANT_TO_PARAM(U_MARK_END));
UFile::msync(ptr + U_CONSTANT_SIZE(U_MARK_END), UFile::map, MS_SYNC);
}
U_INTERNAL_ASSERT_MINOR(ptr_log_data->file_ptr, UFile::st_size)
}
log_file_sz = UFile::st_size;
}
U_INTERNAL_DUMP("ptr_log_data->file_ptr = %u UFile::st_size = %u log_gzip_sz = %u", ptr_log_data->file_ptr, UFile::st_size, log_gzip_sz)
U_INTERNAL_ASSERT(ptr_log_data->file_ptr <= UFile::st_size)
lock = U_NEW(ULock);
U_Log_syslog(this) = false;
ptr_log_data->gzip_len = 0;
ptr_log_data->file_page = ptr_log_data->file_ptr;
#ifdef USE_LIBZ
char suffix[32];
uint32_t len_suffix = u__snprintf(suffix, sizeof(suffix), ".%4D.gz");
buf_path_compress = U_NEW(UString(MAX_FILENAME_LEN));
char* ptr = buf_path_compress->data();
if (dir_log_gz == 0)
{
(void) UFile::setPathFromFile(*this, ptr, suffix, len_suffix);
buf_path_compress->size_adjust();
index_path_compress = (buf_path_compress->size() - len_suffix + 1);
}
else
{
UString name = UFile::getName();
uint32_t len = u__strlen(dir_log_gz, __PRETTY_FUNCTION__), sz = name.size();
U_MEMCPY(ptr, dir_log_gz, len);
ptr += len;
*ptr++ = '/';
buf_path_compress->size_adjust(len + 1 + sz + len_suffix);
U_MEMCPY(ptr, name.data(), sz);
ptr += sz;
U_MEMCPY(ptr, suffix, len_suffix);
index_path_compress = buf_path_compress->distance(ptr) + 1;
buf_path_compress->UString::setNullTerminated();
}
U_INTERNAL_DUMP("buf_path_compress(%u) = %.*S index_path_compress = %u",
buf_path_compress->size(), U_STRING_TO_TRACE(*buf_path_compress), index_path_compress)
#endif
}
ULog::ULog(const UString& path, uint32_t _size, const char* dir_log_gz) : UFile(path, 0)
{
U_TRACE_REGISTER_OBJECT(0, ULog, "%V,%u,%S", path.rep, _size, dir_log_gz)
lock = 0;
ptr_log_data = 0;
log_file_sz =
log_gzip_sz = 0;
U_Log_start_stop_msg(this) = false;
#ifdef USE_LIBZ
buf_path_compress = 0;
index_path_compress = 0;
#endif
if (UFile::getPath().equal(U_CONSTANT_TO_PARAM("syslog")))
{
U_Log_syslog(this) = true;
# ifndef _MSWINDOWS_
openlog(u_progname, LOG_PID, LOG_LOCAL0);
# endif
return;
}
if (UFile::creat(O_RDWR | O_APPEND, 0664) == false)
{
# ifndef U_COVERITY_FALSE_POSITIVE
U_ERROR("cannot creat log file %.*S", U_FILE_TO_TRACE(*this));
# endif
return;
}
/**
* typedef struct log_data {
* uint32_t file_ptr;
* uint32_t file_page;
* uint32_t gzip_len;
* sem_t lock_shared;
* char spinlock_shared[1];
* // --------------> maybe unnamed array of char for gzip compression...
* } log_data;
*/
ptr_log_data = U_MALLOC_TYPE(log_data);
ptr_log_data->file_ptr = 0;
if (_size)
{
uint32_t file_size = UFile::size();
bool bsize = (file_size != _size);
if ((bsize && UFile::ftruncate(_size) == false) ||
UFile::memmap(PROT_READ | PROT_WRITE) == false)
{
U_ERROR("cannot init log file %.*S", U_FILE_TO_TRACE(*this));
return;
}
if (bsize) ptr_log_data->file_ptr = file_size; // append mode
else
{
// NB: we can have a previous crash without resizing the file or we are an other process (apache like log)...
char* ptr = (char*) u_find(UFile::map, file_size, U_CONSTANT_TO_PARAM(U_MARK_END));
if (ptr)
{
ptr_log_data->file_ptr = ptr - UFile::map;
// NB: we can be an other process that manage this file (apache like log)...
u_put_unalignedp64(ptr, U_MULTICHAR_CONSTANT64('\n','\n','\n','\n','\n','\n','\n','\n'));
u_put_unalignedp64(ptr+8, U_MULTICHAR_CONSTANT64('\n','\n','\n','\n','\n','\n','\n','\n'));
u_put_unalignedp64(ptr+16, U_MULTICHAR_CONSTANT64('\n','\n','\n','\n','\n','\n','\n','\n'));
UFile::msync(ptr + U_CONSTANT_SIZE(U_MARK_END), UFile::map, MS_SYNC);
}
U_INTERNAL_ASSERT_MINOR(ptr_log_data->file_ptr, UFile::st_size)
}
log_file_sz = UFile::st_size;
}
U_INTERNAL_ASSERT(ptr_log_data->file_ptr <= UFile::st_size)
lock = U_NEW(ULock);
U_Log_syslog(this) = false;
ptr_log_data->gzip_len = 0;
ptr_log_data->file_page = ptr_log_data->file_ptr;
#ifdef USE_LIBZ
char suffix[32];
uint32_t len_suffix = u__snprintf(suffix, sizeof(suffix), ".%4D.gz");
buf_path_compress = U_NEW(UString(MAX_FILENAME_LEN));
char* ptr = buf_path_compress->data();
if (dir_log_gz == 0)
{
# ifndef U_COVERITY_FALSE_POSITIVE // Uninitialized pointer read (UNINIT)
(void) UFile::setPathFromFile(*this, ptr, suffix, len_suffix);
# endif
buf_path_compress->size_adjust();
index_path_compress = (buf_path_compress->size() - len_suffix + 1);
}
else
{
UString name = UFile::getName();
uint32_t len = u__strlen(dir_log_gz, __PRETTY_FUNCTION__), sz = name.size();
(void) memcpy(ptr, dir_log_gz, len);
ptr += len;
*ptr++ = '/';
buf_path_compress->size_adjust(len + 1 + sz + len_suffix);
(void) memcpy(ptr, name.data(), sz);
ptr += sz;
(void) memcpy(ptr, suffix, len_suffix);
index_path_compress = buf_path_compress->distance(ptr) + 1;
}
#endif
}