# Embedding several ruby interpreter instances in C? **URL:** \ **Category:** Ruby\ **Created:** [September 8, 2010, 4:40pm UTC](https://www.ruby-forum.com/t/embedding-several-ruby-interpreter-instances-in-c/194658 "2010-09-08T16:40:54Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Eric\_MSP\_Veith](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/ecd19e/32.png) [@Eric\_MSP\_Veith](https://www.ruby-forum.com/u/Eric_MSP_Veith)\ **Post date:** [September 8, 2010, 4:40pm UTC](https://www.ruby-forum.com/t/embedding-several-ruby-interpreter-instances-in-c/194658/1 "2010-09-08T16:40:54Z")
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello list, the subject says it all: I know how to generally embed Ruby into a C program. However, since ruby\_init() & co just return void, I guess there is no way to have more than one Ruby interpreter embedded into the same program at a given time. Am I correct with this assumption? TIA! ``` Eric ``` -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEUEARECAAYFAkyHnuMACgkQhS0drJ3goJJ/cgCVGzuL/A4Gl5kNLQW7/fJMdfL0 CQCfStrIS2GnJftLMb4ZYcB/PgmhtUM= =MQbR -----END PGP SIGNATURE----- ---
**Author:** ![Eric\_MSP\_Veith](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/ecd19e/32.png) [@Eric\_MSP\_Veith](https://www.ruby-forum.com/u/Eric_MSP_Veith)\ **Post date:** [September 8, 2010, 4:59pm UTC](https://www.ruby-forum.com/t/embedding-several-ruby-interpreter-instances-in-c/194658/2 "2010-09-08T16:59:38Z")
Hi, In message “Re: Embedding several ruby interpreter instances in C?” on Wed, 8 Sep 2010 23:35:37 +0900, Eric MSP Veith [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes: |the subject says it all: I know how to generally embed Ruby into a C |program. However, since ruby\_init() & co just return void, I guess there is |no way to have more than one Ruby interpreter embedded into the same program |at a given time. Am I correct with this assumption? | |TIA! Yes. We haven’t removed all global variables yet. ``` matz. ``` ---
**Author:** ![Eric\_MSP\_Veith](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/ecd19e/32.png) [@Eric\_MSP\_Veith](https://www.ruby-forum.com/u/Eric_MSP_Veith)\ **Post date:** [September 8, 2010, 5:11pm UTC](https://www.ruby-forum.com/t/embedding-several-ruby-interpreter-instances-in-c/194658/3 "2010-09-08T17:11:56Z")
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, On Wednesday 08 September 2010, Yukihiro M. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Yes. We haven’t removed all global variables yet. Thank you! I just needed the confirmation. 🙂 ``` Eric ``` -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkyHp6EACgkQhS0drJ3goJJnAwCfTcRC1p/dgBDQ5FQfvUT3JtDf rSgAn3Zb4eYiOxAusW9JFvgckqXemPN4 =8YVr -----END PGP SIGNATURE----- ---
**Author:** ![Eric\_MSP\_Veith](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/ecd19e/32.png) [@Eric\_MSP\_Veith](https://www.ruby-forum.com/u/Eric_MSP_Veith)\ **Post date:** [September 8, 2010, 11:05pm UTC](https://www.ruby-forum.com/t/embedding-several-ruby-interpreter-instances-in-c/194658/4 "2010-09-08T23:05:36Z")
On Sep 8, 2010, at 07:59 , Yukihiro M. wrote: > |TIA! > > Yes. We haven’t removed all global variables yet. Didn’t Evan P. do this and provide a patch to ruby-core back in the day (pre-sydney)? ---
**Author:** ![Eric\_MSP\_Veith](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/ecd19e/32.png) [@Eric\_MSP\_Veith](https://www.ruby-forum.com/u/Eric_MSP_Veith)\ **Post date:** [September 9, 2010, 3:50am UTC](https://www.ruby-forum.com/t/embedding-several-ruby-interpreter-instances-in-c/194658/5 "2010-09-09T03:50:38Z")
Eric MSP Veith wrote: > the subject says it all: I know how to generally embed Ruby into a C > program. However, since ruby\_init() & co just return void, I guess there is > no way to have more than one Ruby interpreter embedded into the same program > at a given time. Am I correct with this assumption? This is a specific goal of Rubinius, and I know that it _did_ work with the old stackless Shotgun VM. I’m not sure about the current VM, but if it doesn’t work, it’s probably a bug that will be fixed. jwm ---
**Author:** ![Eric\_MSP\_Veith](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/ecd19e/32.png) [@Eric\_MSP\_Veith](https://www.ruby-forum.com/u/Eric_MSP_Veith)\ **Post date:** [September 8, 2010, 11:23pm UTC](https://www.ruby-forum.com/t/embedding-several-ruby-interpreter-instances-in-c/194658/6 "2010-09-08T23:23:45Z")
On Wed, Sep 8, 2010 at 3:05 PM, Ryan D. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Didn’t Evan P. do this and provide a patch to ruby-core back in the > day (pre-sydney)? Via my magical copypasta IRC to ruby-talk gateway, Evan says: “yes, my patch removed all global variables (it was in syndey). no, it’s not applicable to 1.9.”