[WIP] Feature/multi hooks

CHANGES.txt

@@ -5,12 +5,26 @@
 * fixed bad readme link to wiki
 * removed defunct libpd.cc link for now
 
+* C: print and midi hooks finally per-instance (!)
 * C: added double precision support: libpd_read_array_double(),
      libpd_write_array_double(), libpd_double(), libpd_add_double(),
      libpd_set_double(), t_libpd_doublehook, libpd_set_doublehook(),
      libpd_get_double() (IOhannes Zmoelnig)
+* C: added libpd_set_instancedata() & libpd_get_instancedata() for optional
+     per-instance user data storage
+* C: added t_libpd_freehook type
+* C: fixed libpdinstance_new() memory issue
+* C: fixed ringbuffer mem barrier on Windows (Ali Somay)
 * C: call socket_init() during libpd_init() for Windows (reported by Ali Somay)
 
+* C++: added pd::PdBase per-instance support
+       note: when compiled with PDINSTANCE defined, PdBase calls
+             libpd_set_instance() internally so existing projects which use the
+             libpd_*_instance() functions manually may need to be updated
+* C++: fixed pd::List.toString() trailing whitespace
+
+* C#: added per-instance support (Thomas Mayer)
+
 * Cocoapods: fixed clone unauthenticated git protocol error by moving to https
              submodule urls (reported by Ricardo de Amorim), run the following
              after updating a repo:
@@ -27,6 +41,7 @@
 * CMake: removed unnecessary BSymbolic flag on Windows (Jean-Michaël Celerier)
 
 * various readme updates and clarifications
+* added pdtest_double c sample
 
 0.12.3 2021 Jun 12
 

Makefile

@@ -260,7 +260,7 @@ $(PDJAVA_SRC): $(PDJAVA_JAR_FILES)
 
 csharplib: $(PDCSHARP)
 
-$(PDCSHARP): ${PD_FILES:.c=.o} ${EXTRA_FILES:.c=.o}
+$(PDCSHARP): ${PD_FILES:.c=.o} ${LIBPD_UTILS:.c=.o} ${EXTRA_FILES:.c=.o}
 	$(CC) -o $(PDCSHARP) $^ $(CSHARP_LDFLAGS) -lm -lpthread
 
 clean:

README.md

@@ -155,7 +155,7 @@ By building with the `FAT_LIB=true` Makefile option, libpd will be compiled with
 
 To override autodetection, specify the `-arch` flags directly using the `FAT_ARCHS` Makefile option:
 
-        make FAT_LIB=true FAT_ARCHS="-arch i386 -arch x86_64"
+    make FAT_LIB=true FAT_ARCHS="-arch i386 -arch x86_64"
 
 ### Windows
 
@@ -228,6 +228,16 @@ The C++ wrapper is inspired by the Java wrapper and provides a PdBase class as w
 
 Sample programs are found in `samples/cpp`.
 
+### Multiple Instance Support
+
+By default, PdBase always wraps to the single main libpd instance, so it is recommended to only use one instance of PdBase.
+
+If `PDINSTANCE` is defined, each PdBase will wrap a separate libpd instance.
+
+To enable multiple instance support:
+* Build libpd with `make MULTI=true` or with CFLAGS `-DPDINSTANCE -DPDTHREADS`
+* Build the C++ program using PdBase.hpp with CPPFLAGS `-DPDINSTANCE`
+
 C\#
 --