c - Monitoring a couchbase bucket with libevent -

-

I am trying to implement a single application that writes / Modifications / New Documents occurrences are coming from a different application on a couchbase remote cluster. Now I can use couchbase csd and I am familiar with synchronous examples, but I have a problem combining the libenvent for asynchronous I / O

I have read the discussion But I can not understand how I will tell my event_base, for example:

Monitor this file on this bucket and send me a callback when it is modified

Even what do I do:

First of all, I am making my libevent IO option 

  struct event_base * mEvbase = event_base_new (); Lcb_t Example; Lcb_error_t error; Struct lcb_create_io_ops_st ciops; Lcb_io_opt_t ioops; Memes (& amp; ciops, 0, size (ciops)); Ciops.v.v0.type = LCB_IO_OPS_LIBEVENT; Ciops.v.v0.cookie = MiBase; Err = lcb_create_libevent_io_opts (0, & amp; ioops, mEvbase); If (err! = LCB_SUCCESS) {ERRORMSG0 ("Failed to create IOOPS structure for libevent:% s \ n", lcb_strerror (NULL, error)); }   
 and after that I should make my example:  
  struct lcb_create_st create_options; Std :: string host = std :: string ("couchbase: //192.168.130.10/"); Host.append (bucket); Const char password [] = "password"; create_options.version = 3; Create_options.v.v3.connstr = host.c_str (); Create_options.v.v3.passwd = Password; Create_options.v.v3.io = ioops; // Creating an LCB example = lcb_create (& amp; Examples, & amp; create_options); If (Error! = LCB_SUCCESS) {Dead (zero, "Couchbase handler could not be created \ n", mistake); Return; } / * Assign to the caller handler for the operation type * / lcb_set_bootstrap_callback (for example, bootstrap_callback); Lcb_set_get_callback (e.g., generic_gate_backback); Lcb_set_store_callback (e.g., generic_store_callback);   
 And then I schedule a connection.  
  // We now schedule a connection with the server = lcb_connect (example); If (err! = LCB_SUCCESS) {die (Example, "Could not schedule connection \ n", mistake); lcb_destroy (example); } Lcb_set_cookie (e.g., mEvbase);   
 I use the  libcouchbase version 2.0.17 ,  Libevent Core version 2.0.so.5.1.9  and  Libevent Extras Edition Use 2.0.so.5.1.9 . With the above code, my example can not be connected to the CouchBase. I get the following warnings:  
  event_pending: there is no event_base set in the event. Event_add: There is no Event_base set in the event. There are two problems here: I am unable to use the above code and I do not know which direction to go in order to get the events. If someone points me to a link or coded example of this simple matter which will unblock me.  
  
 
 
 Ensure that both the libraries  and  have similar libevent versions Using the repository to install packages, you must align with the libevent version used in it (like  ldd /usr/lib64/libcouchbase_libevent.so ). Keep in mind that it should be of the same ABI (for example, the libevent 2.0 -> will not use the compat layer, because there are different ABIs in the two versions, and 2.0 using a libcouchbase_libevent.so, associated with 2.0 Will break under).  
 For a complete exchange, please see the comment on this question :)

Comments

Post a Comment

Popular posts from this blog

php - PDO bindParam() fatal error -

-
I am trying to learn PDO, now I have written this small code, but it gives me a serious error: Fatal error: Call a member function at a non-object dot () ... $ con = new mysqli ("127.0.0.1", "root", "", "csvdangercheck"); $ Query = $ con- & gt; ("Id,` var1`, `var2`) values ​​(" id,: var1,: var2) ";); $ query- & gt; bypass pattern (': id', $ id); $ query- & gt; BindParam (': var1', $ VAL1); $ Query- & gt; bindParam (': var2', $ val2); $ Query-> Executed (); I Trying to use print_r ($ con-> errorInfo ()) but Fatal error: Undefined method mysqli :: errorInfo ( ) ... can someone tell me what am I missing? Flaffeh said, you have PDO Missing Mysqy, try it: $ con = new PDO ('mysql: host = 127.0.0.1; dbname = csvdangercheck', 'root', '');
Read more

php - How can I cram 6+31 numeric characters into 22 alphanumeric characters? -

-
I have a 6 digit number and a 31-digit number (such as "234536" and "201103231043330478311223582826") that I The API needs to be crawled in the same 22-character alphanumeric field that uses PHP. I tried to convert each one to 32 (using custom code could not handle the base_convert () large number) and to connect with a single-character delimiter, but It only gives me 26 characters This is a restore API, so the letters should be URI-protected. I would like to do a database table cross with two references without reference to another reference value, if possible, any suggestions? Instead use a radix of 62. This will give you 22 characters for the top, 3.35 for the pre and 17.3 for the next. & gt; & Gt; & Gt; Math.log (10 ** 6) /math.log (62) 3.3474826039165504 & gt; & Gt; & Gt; Math.log (10 ** 31) /math.log (62) 17.295326786902177
Read more

logging - How can I log both the Request.InputStream and Response.OutputStream traffic in my ASP.NET MVC3 Application for specific Actions? -

-
For a specific set of tasks, I need to log in to the incoming request inputstream as well as outgoing response. is. I am using an ActionFilterAttribute for this and overriding the OnActionExecuted and OnResultExecuted methods. So I'm starting with this idea ... Public category ActionLoggerAttribute: ActionFilterArrbit {Public Override Zero On-Offed Execution (ActionActioned Contact Filter Filter) {base.OnActionAxecuted (FilterContext); HttpRequestBase request = filterContext.HttpContext.Request; // TODO: Log the request. InputStream} Public Override Zero OnResultExecuted (ResultExecutedContext FilterContext) {base.OnResultExecuted (filterContext); HTTPRPSPointBase Response = FilterContacts Hpptex response; // TODO: Log on Response.OutputStream}} Ideally I'll hook it up with enterprise library logging because I'm already using it for error logging. Am I reaching the input and output stream at the right time? Can I easily use the Enterprise Library to log i...
Read more