enhanced qse_httpd_entaskfile() and qse_httpd_entaskdir() to handle more methods.

added qse_httpd_entaskallow().
removed some unused functions.

qse/lib/cmn/syscall.h

@@ -318,6 +318,12 @@
 #	define QSE_RENAME(oldpath,newpath) rename(oldpath,newpath)
 #endif
 
+#if defined(SYS_mkdir) && defined(QSE_USE_SYSCALL)
+#	define QSE_MKDIR(path,mode) syscall(SYS_mkdir,path,mode)
+#else
+#	define QSE_MKDIR(path,mode) mkdir(path,mode)
+#endif
+
 #if defined(SYS_rmdir) && defined(QSE_USE_SYSCALL)
 #	define QSE_RMDIR(path) syscall(SYS_rmdir,path)
 #else

qse/lib/cmn/syserr.h

@@ -128,6 +128,7 @@
 		{ \
 			case ENOMEM: return __SYSERRNUM__ (obj2, ENOMEM); \
 			case EINVAL: return __SYSERRNUM__ (obj2, EINVAL); \
+			case EBUSY: \
 			case EACCES: return __SYSERRNUM__ (obj2, EACCES); \
 			case ENOTDIR: \
 			case ENOENT: return __SYSERRNUM__ (obj2, ENOENT); \