Pike-devel May 2016

pike-devel@lists.lysator.liu.se

8 participants
25 discussions

Promises and HTTP
by Pontus Östlund 06 May '16

06 May '16

Hi guys! I started experimenting with the new Concurrent.Promise/Concurrent.Future classes and implementing a HTTP client module using the promise/future stuff. The reason for this is that the async stuff in Protocols.HTTP.Query is far from intuitive. With promises/futures I think you get a super clean API that is easy to use. So I started experimenting with this and would like to have your thoughts on the matter. Right now I put it as Protocols.HTTP.Promise but any suggestions on what to call it and where to place it would be appreciated. Here’s some examples of how it would be used at the moment. // Fetch a single URL import Protocols.HTTP; int main() { string url1 = ”http://pike.lysator.liu.se <http://pike.lysator.liu.se/>”; Concurrent.Future q1 = Promise.get_url(url1); q1->on_success(lambda (Protocols.HTTP.Query ok) { werror(”Successfully got %O\n”, ok->host); })->on_failure(lambda (Protocols.HTTP.Query fail) { werror(”%O failed!\n”, fail->host); }); return -1; } // Fetch multiple URLs and call on_success in parallell for each request. import Protocols.HTTP; int main() { string url1 = ”http://pike.lysator.liu.se <http://pike.lysator.liu.se/>”; string url2 = ”http://roxen.com <http://roxen.com/>”; Concurrent.Future q1 = Promise.get_url(url1); Concurrent.Future q2 = Promise.get_url(url2); array(Concurrent.Future) all = ({ q1, q2 }); all->on_success(lambda (Protocols.HTTP.Query ok) { werror(”Successfully got %O\n”, ok->host); })->on_failure(lambda (Protocols.HTTP.Query fail) { werror(”%O failed!\n”, fail->host); }); return -1; } // Fetch multiple URLs and call on_success when all has succeeded. // on_failure will be called immediately if one request fails. import Protocols.HTTP; int main() { string url1 = ”http://pike.lysator.liu.se <http://pike.lysator.liu.se/>”; string url2 = ”http://roxen.com <http://roxen.com/>”; Concurrent.Future q1 = Promise.get_url(url1); Concurrent.Future q2 = Promise.get_url(url2); Concurrent.Future batch = Concurrent.results(({ q1, q2 })); all->on_success(lambda (array(Protocols.HTTP.Query) ok) { werror(”Successfully got %O\n”, ok->host); })->on_failure(lambda (Protocols.HTTP.Query fail) { werror(”%O failed!\n”, fail->host); }); return -1; } So, any thoughts on this? Regards ----------------------------- Pontus Östlund Developer • Roxen AB +46 70-662 81 69 www.roxen.com <http://www.roxen.com/> | twitter.com/roxen <https://twitter.com/roxen>

2 4

CHANGES for next release
by Peter Bortas ＠ Pike developers forum 05 May '16

05 May '16

Should any of the following have a CHANGES note?: * ADT.Heap: Added low_peek(). * Fix GTK2.SourceBuffer undo/redo signal names * Fix spelling of composite[d]_changed signal - Is that an API change or where the signals not properly hooked up before? * Crypto/SSL - There is a ton of Crypto/SSL changes. I'm just going to trust Nilsson and/or Grubba to make sure relevant things are in CHANGES.

3 2

Problems building Pike on Mac
by Pontus Östlund 03 May '16

03 May '16

I recetly started getting this build error, which I have absoluteley no clue what to do about: […] In file included from /Users/ponost/src/pike-git/devel/src/post_modules/Nettle/cipher.cmod:16: /Users/ponost/src/pike-git/devel/src/module_support.h:47:1: warning: target does not support 'protected' visibility; using 'default' [-Wunsupported-visibility] PMOD_EXPORT void get_all_args(const char *fname, INT32 args, ^ /Users/ponost/src/pike-git/devel/src/global.h:624:42: note: expanded from macro 'PMOD_EXPORT' # define PMOD_EXPORT __attribute__ ((visibility("protected"))) ^ In file included from /Users/ponost/src/pike-git/devel/src/post_modules/Nettle/cipher.cmod:16: /Users/ponost/src/pike-git/devel/src/module_support.h:49:1: warning: target does not support 'protected' visibility; using 'default' [-Wunsupported-visibility] PMOD_EXPORT void pike_module_export_symbol(const char *str, ^ […] /Users/ponost/src/pike-git/devel/src/post_modules/Nettle/cipher.cmod:426:19: error: use of undeclared identifier 'f_Nettle_Cipher_name_fun_num' apply_external(1, f_Nettle_Cipher_name_fun_num, args); ^ /Users/ponost/src/pike-git/devel/src/post_modules/Nettle/cipher.cmod:452:19: error: use of undeclared identifier 'f_Nettle_Cipher_block_size_fun_num' apply_external(1, f_Nettle_Cipher_block_size_fun_num, args); ^ /Users/ponost/src/pike-git/devel/src/post_modules/Nettle/cipher.cmod:466:37: error: use of undeclared identifier 'Nettle_Cipher_program'; did you mean 'nettle_hash_program'? struct Nettle_Cipher_struct *info = GET_INFO(); ^ /Users/ponost/src/pike-git/devel/src/post_modules/Nettle/cipher.cmod:288:70: note: expanded from macro 'GET_INFO' #define GET_INFO() ((struct Nettle_Cipher_struct *)parent_storage(1, Nettle_Cipher_program)) ^ /Users/ponost/src/pike-git/devel/src/post_modules/Nettle/nettle.h:24:24: note: 'nettle_hash_program' declared here extern struct program *nettle_hash_program; ^ /Users/ponost/src/pike-git/devel/src/post_modules/Nettle/cipher.cmod:469:26: error: incomplete definition of type 'struct Nettle_Cipher_struct' memset(THIS->ctx, 0, info->meta->context_size); ~~~~^ /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include/secure/_string.h:77:38: note: expanded from macro 'memset' __builtin___memset_chk (dest, val, len, __darwin_obsz0 (dest)) ^~~ /Users/ponost/src/pike-git/devel/src/post_modules/Nettle/cipher.cmod:466:8: note: forward declaration of 'struct Nettle_Cipher_struct' struct Nettle_Cipher_struct *info = GET_INFO(); ^ /Users/ponost/src/pike-git/devel/src/post_modules/Nettle/cipher.cmod:544:19: error: use of undeclared identifier 'f_Nettle_Cipher_name_fun_num' apply_external(1, f_Nettle_Cipher_name_fun_num, args); ^ fatal error: too many errors emitted, stopping now [-ferror-limit=] 518 warnings and 20 errors generated. Compilation command was: /Users/ponost/src/pike-git/devel/build/darwin-15.4.0-x86_64/smartlink gcc -I. -I/Users/ponost/src/pike-git/devel/src/post_modules/Nettle -I/Users/ponost/src/pike-git/devel/build/darwin-15.4.0-x86_64 -I/Users/ponost/src/pike-git/devel/src -Dpike_module_init=pike_module_Nettle_init -Dpike_module_exit=pike_module_Nettle_exit -I/usr/local/include -I/usr/X11/include -I/usr/X11R6/include -DHAVE_CONFIG_H -g -std=c99 -ggdb -m64 -mtune=750 -mrdrnd -fvisibility=hidden -O3 -pipe -W -Wall -Wno-unused -Wcomment -Wformat -Wformat-security -Wimplicit-function-declaration -Wmultichar -Wunused-function -Wswitch -Wuninitialized -Wpointer-arith -Wchar-subscripts -Wno-long-long -c /Users/ponost/src/pike-git/devel/src/post_modules/Nettle/cipher.c -o cipher.o make[5]: *** [cipher.o] Error 1 make[4]: *** [all] Error 2 make[3]: *** [Nettle] Error 1 make[2]: *** [post-modules-stamp] Error 1 make[1]: *** [_make_in_builddir] Error 2 make: *** [compile] Error 2 I guess this is Grubba’s area? ;) Regards ----------------------------- Pontus Östlund Developer • Roxen AB +46 70-662 81 69 www.roxen.com <http://www.roxen.com/> | twitter.com/roxen <https://twitter.com/roxen>

2 2

Wrong enum type
by Arne Goedeke 03 May '16

03 May '16

An enum with two elements can get the wrong resulting type: > enum A { a, b }; Compiler Warning: 2: a is private but not used anywhere. Compiler Warning: 2: b is private but not used anywhere. Compiler Warning: 2: A is private but not used anywhere. (1) Result: int(1..1) The problem seems to be in or_pike_types handling of T_ZERO, but I am unsure about how that should be fixed. Also, whats the point of those warnings about private unused definitions? Is that a hilfe issue? Arne

1 0

This weeks stable attempt.
by Peter Bortas 02 May '16

02 May '16

Tomorrow is the first Tuesday of the month, so I will as usual attempt to make a stable release. This week there is however a four day weekend, which chance to have a look at some larger changes on the Windows side. The actual release will if it happens be on Sunday the 8th. Regards, -- Peter Bortas

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Pike-devel May 2016