search for: free_filename

...mp; !newstyle) { fprintf (stderr, "%s: cannot use oldstyle protocol (-o) and require TLS\n", program_name); @@ -727,7 +728,7 @@ open_plugin_so (size_t i, const char *name, int short_name) { struct backend *ret; char *filename = (char *) name; - int free_filename = 0; + bool free_filename = false; void *dl; struct nbdkit_plugin *(*plugin_init) (void); char *error; @@ -739,7 +740,7 @@ open_plugin_so (size_t i, const char *name, int short_name) perror ("asprintf"); exit (EXIT_FAILURE); } - free_filename = 1; + free...

..., char *argv[]) perror ("expecting stdin/stdout to be opened"); exit (EXIT_FAILURE); } +#ifdef WINDOWS_COMPAT + init_functions (); +#endif #if !ENABLE_LIBFUZZER threadlocal_init (); @@ -772,6 +819,7 @@ open_plugin_so (size_t i, const char *name, int short_name) bool free_filename = false; void *dl; struct nbdkit_plugin *(*plugin_init) (void); + void *(*functions_init) (struct nbdkit_functions *); char *error; if (short_name) { @@ -797,6 +845,18 @@ open_plugin_so (size_t i, const char *name, int short_name) /* Initialize the plugin. See dlopen(3) to unde...

...ort_name) { struct backend *ret; char *filename = (char *) name; @@ -653,7 +695,55 @@ open_plugin_so (const char *name, int short_name) } /* Register the plugin. */ - ret = plugin_register (filename, dl, plugin_init); + ret = plugin_register (i, filename, dl, plugin_init); + + if (free_filename) + free (filename); + + return ret; +} + +static struct backend * +open_filter_so (struct backend *next, size_t i, + const char *name, int short_name) +{ + struct backend *ret; + char *filename = (char *) name; + int free_filename = 0; + void *dl; + struct nbdkit_filter *(*f...

I pushed a few of the msys2 patches upstream. I changed the way that $(SHARED_LDFLAGS) works so it's more to my liking, and the others were pushed unchanged. Three patches remain which I'm posting on the mailing list for proper review. Rich.

...ort_name) { struct backend *ret; char *filename = (char *) name; @@ -653,7 +696,55 @@ open_plugin_so (const char *name, int short_name) } /* Register the plugin. */ - ret = plugin_register (filename, dl, plugin_init); + ret = plugin_register (i, filename, dl, plugin_init); + + if (free_filename) + free (filename); + + return ret; +} + +static struct backend * +open_filter_so (struct backend *next, size_t i, + const char *name, int short_name) +{ + struct backend *ret; + char *filename = (char *) name; + int free_filename = 0; + void *dl; + struct nbdkit_filter *(*f...

...ort_name) { struct backend *ret; char *filename = (char *) name; @@ -653,7 +696,55 @@ open_plugin_so (const char *name, int short_name) } /* Register the plugin. */ - ret = plugin_register (filename, dl, plugin_init); + ret = plugin_register (i, filename, dl, plugin_init); + + if (free_filename) + free (filename); + + return ret; +} + +static struct backend * +open_filter_so (struct backend *next, size_t i, + const char *name, int short_name) +{ + struct backend *ret; + char *filename = (char *) name; + int free_filename = 0; + void *dl; + struct nbdkit_filter *(*f...

...ckend); + backend = NULL; free (unixsocket); free (pidfile); @@ -609,9 +613,10 @@ make_random_fifo (void) return unixsocket; } -static void +static struct backend * open_plugin_so (const char *name, int short_name) { + struct backend *ret; char *filename = (char *) name; int free_filename = 0; void *dl; @@ -647,10 +652,12 @@ open_plugin_so (const char *name, int short_name) } /* Register the plugin. */ - plugin_register (filename, dl, plugin_init); + ret = plugin_register (filename, dl, plugin_init); if (free_filename) free (filename); + + return ret; } s...

...ckend); + backend = NULL; free (unixsocket); free (pidfile); @@ -609,9 +613,10 @@ make_random_fifo (void) return unixsocket; } -static void +static struct backend * open_plugin_so (const char *name, int short_name) { + struct backend *ret; char *filename = (char *) name; int free_filename = 0; void *dl; @@ -647,10 +652,12 @@ open_plugin_so (const char *name, int short_name) } /* Register the plugin. */ - plugin_register (filename, dl, plugin_init); + ret = plugin_register (filename, dl, plugin_init); if (free_filename) free (filename); + + return ret; } s...

...ckend); + backend = NULL; free (unixsocket); free (pidfile); @@ -609,9 +613,10 @@ make_random_fifo (void) return unixsocket; } -static void +static struct backend * open_plugin_so (const char *name, int short_name) { + struct backend *ret; char *filename = (char *) name; int free_filename = 0; void *dl; @@ -647,10 +652,12 @@ open_plugin_so (const char *name, int short_name) } /* Register the plugin. */ - plugin_register (filename, dl, plugin_init); + ret = plugin_register (filename, dl, plugin_init); if (free_filename) free (filename); + + return ret; } s...

This patch isn't complete (patch 6/6 isn't finished) so it's just for discussion, although it does compile and run. This introduces to nbdkit a concept of "filters" which can be placed in front of plugins to modify their behaviour. Some examples where you might use filters: * Serve a subset of the data, such as (offset, range) or a single partition from a disk image.

v1 -> v2: - Fixed everything mentioned in the review. Rich.

Somewhat invasive but mostly mechanical change to how plugins are called. This patch is in preparation for adding a second backend subtype for filters. Rich.

The first three patches are identical to: https://www.redhat.com/archives/libguestfs/2018-January/msg00079.html "[PATCH nbdkit v2 0/3] Refactor plugin_* functions into a backend" The rest of the patches add filters using the new filter API previously described here: https://www.redhat.com/archives/libguestfs/2018-January/msg00073.html This needs a lot more testing -- and tests --

This is still tentative and needs a lot of work, but: - partition filter works, supporting MBR & GPT - prepare and finalize methods fixed - open method can now be changed (allowing readonly flag to be modified) - thread_model can be limited I believe I made most of the changes which were previously suggested in email. I think the only one I didn't was preventing inclusion of both

A combination of the work that both Rich and I have been doing lately, where filters use only the new API with flags on every command that the client can send over the wire (we can then add support for more flags in nbdkit without having to add new callbacks, as NBD adds more flags upstream). Eric Blake (4): protocol: Split flags from cmd field in requests backend: Pass flags argument through

Rebased filters patch. Requires current git master + the locks / thread model fix (https://www.redhat.com/archives/libguestfs/2018-January/msg00128.html) So a few changes here since last time: The "introduce filters" and "implement filters" patches are squashed together. I introduced a concept of .prepare and .finalize. These run before and after the data serving phase