added 'filesize' parameter.

usrecnik · Oct 10, 2017 · b1654bf · b1654bf
1 parent f6cfc34
commit b1654bf
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Showing 5 changed files with 21 additions and 1 deletion.
diff --git a/README.md b/README.md
@@ -87,6 +87,12 @@ Defines verbosity used for stdout messages. Default value is `INFO`.
 Where to store temporary files - offline copies of DDL statements while their files are open. 
 `/tmp` location is used by default. All files created by **ddlfs** have names prefixed by `ddlfs-<PID>` in this folder.
 
+**`filesize=`**`0`  
+All `.sql` files report file size as specified by this parameter - unless if file is currently open; correct file size 
+is always returned for currently open files. Usign default value `0` (or not specifying this parameter) should be OK for 
+most cases, however, some applications refuse to read files with zero length and only read files up to returned file size. 
+If you use such application with `ddlfs` specify this parameter to be greater than any database object (`10485760`, this 
+is 10mb, should be enough in most cases).
 
 Tips for VIM
 ------------

diff --git a/docs/ddlfs.man b/docs/ddlfs.man
@@ -50,4 +50,14 @@ Defines verbosity level used for stdout messages.
 Where to store temporary files - offline copies of DDL statements while their files are open. 
 \fI/tmp\fR location is used by default. All files created by \fBddlfs\fR are prefixed by ddlfs-<PID> in this folder.
 
+.TP
+.BR filesize=\fI0\fR
+All .sql files report file size as specified by this parameter - unless if file is currently open; correct file size
+is always returned for currently open files. Usign default value 0 (or not specifying this parameter) should be OK for 
+most cases, however, some applications refuse to read files with zero length and only read files up to returned file size. 
+If you use such application with `ddlfs` specify this parameter to be greater than any database object (`10485760`, 
+this is 10mb, should be enough in most cases).
+
+
+
 
diff --git a/src/config.c b/src/config.c
@@ -19,6 +19,7 @@ static struct fuse_opt ddlfs_opts[] = {
     MYFS_OPT("schemas=%s",  schemas,  1),
     MYFS_OPT("loglevel=%s", loglevel, 1),
     MYFS_OPT("temppath=%s", temppath, 1),
+    MYFS_OPT("filesize=%d", filesize, 1),
     MYFS_OPT("lowercase",   lowercase, 1),
     MYFS_OPT("nolowercase", lowercase, 0),
 
@@ -95,6 +96,7 @@ struct fuse_args parse_arguments(int argc, char *argv[]) {
     logmsg(LOG_DEBUG, ".. schemas  : [%s]", g_conf.schemas);
     logmsg(LOG_DEBUG, ".. lowercase: [%d]", g_conf.lowercase);
     logmsg(LOG_DEBUG, ".. temppath : [%s]", g_conf.temppath);
+    logmsg(LOG_DEBUG, ".. filesize : [%d]", g_conf.filesize);
     logmsg(LOG_DEBUG, ".");
 
     return args;

diff --git a/src/config.h b/src/config.h
@@ -11,6 +11,7 @@ struct s_global_config {
     char *database;
     char *schemas;
     int   lowercase;
+    int   filesize;
     char *loglevel;
 } g_conf;
 

diff --git a/src/fuse-impl.c b/src/fuse-impl.c
@@ -18,6 +18,7 @@ __asm__(".symver memcpy,memcpy@GLIBC_2.2.5");
 #include "vfs.h"
 #include "logging.h"
 #include "query.h"
+#include "config.h"
 #include "fuse-impl.h"
 
 #define DEPTH_SCHEMA 0
@@ -129,7 +130,7 @@ int fs_getattr( const char *path, struct stat *st )
     }
 
     struct stat tmp_st;
-    tmp_st.st_size = 0; 
+    tmp_st.st_size = g_conf.filesize; 
 
     if (depth == DEPTH_MAX) {
         char *fname;