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Avoid unhandled exceptions. Thanks to Zeniko for this.
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A new 'cookie' parameter is added to page rendering/interpretation
functions. Supply this as NULL to get existing behaviour.
If you supply a non-NULL cookie, then this is taken as a pointer to
a struct that can be used for simple, non-thread locked communication
between caller and library.
The entire struct should be memset to zero before entry, except for
specific flags (thus coping with future extensions to this struct).
The abort flag should be zero on entry. It will be checked periodically
by the library - if the caller sets it non-zero (via another thread)
then the current operation will be aborted. No guarantees are given as
to how often this will be checked, or how fast it will be responded to.
The progress_max field will be set to an integer (-1 for unknown)
representing the number of 'things' to do. The progress field will
count up from 0 to this number as time goes by. No guarantees are
made as to the accuracy of this information, but it should be
useful for offering some sort of progress bar etc. Note that
progress_max may increase during the job.
In general, callers should be careful to accept out of range or
invalid data in this structure as this is deliberately
accessed 'unlocked'.
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Add simple combined exe build for mupdf/muxps tools.
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Change the fz_store to be limited to 256 Megs. Remove the soft limit
for pixmaps; the store will automatically throw old resources away
to stay below the limit.
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Firstly, we rename pdf_store to fz_store, reflecting the fact that
there are no pdf specific dependencies on it.
Next, we rework it so that all the objects that can be stored in
the store start with an fz_storable structure. This consists of
a reference count, and a function used to free the object when
the reference count reaches zero.
All the keep/drop functions are then reimplemented by calling
fz_keep_sharable/fz_drop_sharable. The 'drop' functions as supplied
by the callers are thus now 'free' functions, only called if
the reference count drops to 0.
The store changes to keep all the items in the store in the linked
list (which becomes a doubly linked one). We still make use of
the hashtable to index into this list quickly, but we now have
the objects in an LRU ordering within the list.
Every object is put into the store, with a size record; this is
an estimate of how much memory would be freed by freeing that
object.
The store is moved into the context and given a maximum size;
when new things are inserted into the store, care is taken to
ensure that we do not expand beyond this size. We evict any
stored items (that are not in use) starting from the least
recently used.
Finding an object in the store now takes a reference to it already.
LOCK and UNLOCK comments are used to indicate where locks need to
be taken and released to ensure thread safety.
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Also: use 'cannot' instead of 'failed to' in error messages.
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Mostly redoing the xps_context to xps_document change and adding
contexts to newly written code.
Conflicts:
apps/pdfapp.c
apps/pdfapp.h
apps/x11_main.c
apps/xpsdraw.c
draw/draw_device.c
draw/draw_scale.c
fitz/base_object.c
fitz/fitz.h
pdf/mupdf.h
pdf/pdf_interpret.c
pdf/pdf_outline.c
pdf/pdf_page.c
xps/muxps.h
xps/xps_doc.c
xps/xps_xml.c
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This was removed during a previous commit to make the editing easier.
Now added back in.
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This frees us from passing errors back everywhere, and hence enables us
to pass results back as return values.
Rather than having to explicitly check for errors everywhere and bubble
them, we now allow exception handling to do the work for us; the
downside to this is that we no longer emit as much debugging information
as we did before (though this could be put back in). For now, the
debugging information we have lost has been retained in comments
with 'RJW:' at the start.
This code needs fuller testing, but is being committed as a work in
progress.
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Huge pervasive change to lots of files, adding a context for exception
handling and allocation.
In time we'll move more statics into there.
Also fix some for(i = 0; i < function(...); i++) calls.
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Import exception handling code from WSS, modified to fit into the
fitz world.
With this code we have 'real' fz_try/fz_catch/fz_rethrow functions,
handling a fz_except type. We therefore rename the existing fz_throw/
fz_catch/fz_rethrow to be fz_error_make/fz_error_handle/fz_error_note.
We don't actually use fz_try/fz_catch/fz_rethrow yet...
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The run-together words are dead! Long live the underscores!
The postscript inspired naming convention of using all run-together
words has served us well, but it is now time for more readable code.
In this commit I have also added the sed script, rename.sed, that I used
to convert the source. Use it on your patches and application code.
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