// Set up a connection to a ScrollView on hostname:port.
SVNetwork::SVNetwork(const char* hostname, int port) {
mutex_send_ = new SVMutex();
msg_buffer_in_ = new char[kMaxMsgSize + 1];
msg_buffer_in_[0] = '\0';
has_content = false;
buffer_ptr_ = NULL;
struct addrinfo *addr_info = NULL;
if (GetAddrInfo(hostname, port, &addr_info) != 0) {
std::cerr << "Error resolving name for ScrollView host "
<< std::string(hostname) << ":" << port << std::endl;
}
stream_ = socket(addr_info->ai_family, addr_info->ai_socktype,
addr_info->ai_protocol);
// If server is not there, we will start a new server as local child process.
if (connect(stream_, addr_info->ai_addr, addr_info->ai_addrlen) < 0) {
const char* scrollview_path = getenv("SCROLLVIEW_PATH");
if (scrollview_path == NULL) {
#ifdef SCROLLVIEW_PATH
#define _STR(a) #a
#define _XSTR(a) _STR(a)
scrollview_path = _XSTR(SCROLLVIEW_PATH);
#undef _XSTR
#undef _STR
#else
scrollview_path = ".";
#endif
}
const char *prog = ScrollViewProg();
std::string command = ScrollViewCommand(scrollview_path);
SVSync::StartProcess(prog, command.c_str());
// Wait for server to show up.
// Note: There is no exception handling in case the server never turns up.
stream_ = socket(addr_info->ai_family, addr_info->ai_socktype,
addr_info->ai_protocol);
while (connect(stream_, addr_info->ai_addr,
addr_info->ai_addrlen) < 0) {
std::cout << "ScrollView: Waiting for server...\n";
#ifdef _WIN32
Sleep(1000);
#else
sleep(1);
#endif
stream_ = socket(addr_info->ai_family, addr_info->ai_socktype,
addr_info->ai_protocol);
}
}
FreeAddrInfo(addr_info);
}
/**
* @brief CCUtil::main_setup - set location of tessdata and name of image
*
* @param argv0 - paths to the directory with language files and config files.
* An actual value of argv0 is used if not NULL, otherwise TESSDATA_PREFIX is
* used if not NULL, next try to use compiled in -DTESSDATA_PREFIX. If previous
* is not successful - use current directory.
* @param basename - name of image
*/
void CCUtil::main_setup(const char *argv0, const char *basename) {
imagebasename = basename; /**< name of image */
char *tessdata_prefix = getenv("TESSDATA_PREFIX");
if (argv0 != NULL) {
/* Use tessdata prefix from the command line. */
datadir = argv0;
} else if (tessdata_prefix) {
/* Use tessdata prefix from the environment. */
datadir = tessdata_prefix;
#if defined(_WIN32)
} else if (datadir == NULL || access(datadir.string(), 0) != 0) {
/* Look for tessdata in directory of executable. */
static char dir[128];
static char exe[128];
DWORD length = GetModuleFileName(NULL, exe, sizeof(exe));
if (length > 0 && length < sizeof(exe)) {
_splitpath(exe, NULL, dir, NULL, NULL);
datadir = dir;
}
#endif /* _WIN32 */
#if defined(TESSDATA_PREFIX)
} else {
/* Use tessdata prefix which was compiled in. */
#define _STR(a) #a
#define _XSTR(a) _STR(a)
datadir = _XSTR(TESSDATA_PREFIX);
#undef _XSTR
#undef _STR
#endif
}
// datadir may still be empty:
if (datadir.length() == 0) {
datadir = "./";
} else {
// Remove tessdata from the end if present, as we will add it back!
int length = datadir.length();
if (length >= 8 && strcmp(&datadir[length - 8], "tessdata") == 0)
datadir.truncate_at(length - 8);
else if (length >= 9 && strcmp(&datadir[length - 9], "tessdata/") == 0)
datadir.truncate_at(length - 9);
}
// check for missing directory separator
const char *lastchar = datadir.string();
lastchar += datadir.length() - 1;
if ((strcmp(lastchar, "/") != 0) && (strcmp(lastchar, "\\") != 0))
datadir += "/";
datadir += m_data_sub_dir; /**< data directory */
}
void CCUtil::main_setup( /*main demo program */
const char *argv0, //program name
const char *basename //name of image
) {
imagebasename = basename; /*name of image */
#ifdef WINAPI_FAMILY
datadir = "./";
#else
// TESSDATA_PREFIX Environment variable overrules everything.
// Compiled in -DTESSDATA_PREFIX is next.
// An actual value of argv0 is used if not NULL, otherwise current directory.
if (!getenv("TESSDATA_PREFIX")) {
#ifdef TESSDATA_PREFIX
#define _STR(a) #a
#define _XSTR(a) _STR(a)
datadir = _XSTR(TESSDATA_PREFIX);
#undef _XSTR
#undef _STR
#else
if (argv0 != NULL) {
datadir = argv0;
// Remove tessdata from the end if present, as we will add it back!
int length = datadir.length();
if (length >= 8 && strcmp(&datadir[length - 8], "tessdata") == 0)
datadir.truncate_at(length - 8);
else if (length >= 9 && strcmp(&datadir[length - 9], "tessdata/") == 0)
datadir.truncate_at(length - 9);
if (datadir.length() == 0)
datadir = "./";
} else {
datadir = "./";
}
#endif
} else {
datadir = getenv("TESSDATA_PREFIX");
}
#endif // WINAPI_FAMILY
// check for missing directory separator
const char *lastchar = datadir.string();
lastchar += datadir.length() - 1;
if ((strcmp(lastchar, "/") != 0) && (strcmp(lastchar, "\\") != 0))
datadir += "/";
datadir += m_data_sub_dir; /*data directory */
}
void CCUtil::main_setup( /*main demo program */
const char *argv0, //program name
const char *basename //name of image
) {
imagebasename = basename; /*name of image */
STRING dll_module_name;
#ifdef _WIN32
dll_module_name = tessedit_module_name;
#endif
// TESSDATA_PREFIX Environment variable overrules everything.
// Compiled in -DTESSDATA_PREFIX is next.
// NULL goes to current directory.
// An actual value of argv0 is used if getpath is successful.
if (!getenv("TESSDATA_PREFIX")) {
#ifdef TESSDATA_PREFIX
#define _STR(a) #a
#define _XSTR(a) _STR(a)
datadir = _XSTR(TESSDATA_PREFIX);
#undef _XSTR
#undef _STR
#else
if (argv0 != NULL) {
if (getpath(argv0, dll_module_name, datadir) < 0)
#ifdef __UNIX__
CANTOPENFILE.error("main", ABORT, "%s to get path", argv0);
#else
NO_PATH.error("main", DBG, NULL);
#endif
} else {
datadir = "./";
}
#endif
} else {
datadir = getenv("TESSDATA_PREFIX");
}
datadir += m_data_sub_dir; /*data directory */
}
