Assume you have a system that does not provide a usleep(unsigned long usec) call to suspend the execution of the thread for a given amount of time, say in ?secs. how would you implement this function using condition variables?

Answers

Answer 1

#include <iostream>

#include <time.h>

using namespace std;

//usleep function declaration

void usleep(int microseconds);

//usleep function definition

void usleep(int microseconds) // Cross-platform sleep function

{

clock_t time_end;

time_end = clock() + microseconds * CLOCKS_PER_SEC / 1000000; //as 1 microsecond is 1/1000000 of a second.

while (clock() < time_end);

}

int main()

{

cout << "Before calling User defined usleep" << endl;

usleep(4000000);

cout << "After calling User defined usleep" << endl;

}


Related Questions

Why is the value of community organizations and cooperatives difficult to measure?

Answers

Measuring the value of community organizations and cooperatives is difficult due to the subjective nature of their benefits, challenges in long-term planning and data gathering, as well as valuing unpaid volunteer efforts. Methods like Social Return on Investment (SROI) are employed but can oversimplify the value created, especially when it comes to 'soft outcomes'.

Measuring the value of community organizations and cooperatives is complex due to the intricate nature of their work, which involves multiple non-financial outcomes. Public organizations aim for efficiency and effectiveness in their operations, but the value they generate can often be non-quantifiable or subjective, such as community well-being or social cohesion. Furthermore, conducting long-term need and asset assessments is challenging, as these initiatives are affected by an array of external factors that can be difficult to predict or control. This complexity is compounded when trying to gather financial and impact data; not only are the costs and resources associated with doing so high, but the value they report is often less tangible than what investors and donors expect.

Another aspect that complicates the valuation is the contribution of unpaid volunteers, whose time and efforts are significant but traditionally not reflected in financial statements. There is no universal method for placing a value on such contributions, making the full impact of these organizations harder to measure.

Finally, Social Return on Investment (SROI) has been recognized as a method to measure the non-financial value created by such organizations. However, it tends to over-simplify the results, particularly when trying to quantify 'soft outcomes' that do not have a direct economic value. While SROI is useful in some cases, it is often seen as better suited to for-profit entities rather than community-based or non-profit organizations.

Theuniversityadministrationassuresamathematicianthathehasonly1chancein 10,000 of being trapped in a much-maligned elevator in the mathematics building. if he goes to work 5 days a week, 52 weeks a year, for 10 years, and always rides the elevator up to his office when he first arrives, what is the probability that he will never be trapped? that he will be trapped once? twice? assume that the outcomes on all the days are mutually independent (a dubious assumption in practice)

Answers

Never being trapped = 77.10% Being trapped exactly once = 20.05% Being trapped exactly twice = 2.61% First, determine how many time the professor will ride the elevator, which will be 5 times 52 time 10 = 2600 times. The probability of his never being trapped will be (1-1/10000)^2600 = 0.771041562 = 77.1041562% which rounds to 77.1% Being trapped once is the probability of being trapped on just the 1st day, plus the probability of being trapped on just the second day, ..., plus the probability of being trapped on just the last day. So 0.0001 * 0.9999^2599 + 0.9999 * 0.0001 * 0.9999^2598 + 0.9999^2 * 0.0001 * 0.9999^2597 + ... + 0.9999^2599 * 0.0001 = (0.0001 * 0.9999^2599) * 2600 = 0.200490855 = 20.05% For being trapped exactly twice, the same type of calculation is done with the base value being 0.0001^2 * 0.9999^2598 The number of times the base value is multiplied will be the number of ways you can pick 2 days out of a set of 2600 days, which is 2600/(2!2598!) = 3378700 So we have (0.0001^2 * 0.9999^2598) * 3378700 = 0.026056392 = 2.61% The general formula for being trapped on exactly n days is 0.0001^n * 0.9999 ^ (2600-n) * 2600!/(n!(2600-n)!)

Why does the inclusion of women on corporate boards improve company performance?

Answers

First, diversity provides equal opportunity to groups historically excluded from positions of power and enables full use of the pool of available talent. The second claim is that diversity will improve organizational processes and performance. This business case for diversity tends to dominate debates in part because it appeals to a culture steeped in shareholder value as the metric for corporate decision making. This is also the claim on which controversy centers

CASE STUDYBUSINESS LAWAnderson Darragh, a real estate agent for RE/MAX, informed Bryan Thomas, a real estate developer, that he knew of a commercial property Thomas might be interested in buying. Thomas told Darragh that he was interested but wanted more information about the property. Darragh revealed the address of the property and the selling price. Darragh also stated that if Thomas bought the property, Thomas would have to pay RE/MAX an 8 percent commission. Darragh met with the owner of the property and obtained information regarding the lease agreements of the current tenants, monthly rent payments, and relevant expenses. Darragh also went to City Hall and compiled data related to property taxes and zoning. Darragh gave all of the information he had gathered to Thomas at a meeting on March 16. Darragh also included a document stating that the 8 percent commission should be paid to RE/MAX after the purchase of the property was complete. Thomas did not agree to the 8 percent commission at the meeting. On March 21, Darragh arranged for Thomas to meet with the property owner and during that meeting, Thomas purchased the property. After the sale was complete, Thomas refused to pay the 8 percent commission to RE/MAX.This Case Analysis is worth a maximum of 25 points. Please complete the following for your assignment:What is the legal issue involved in this case? – 5 pointsBased on the Issue identified, provide an argument for Darragh using facts of the case and relevant legal theory to support it. – 5 points Based on the Issue identified, provide an argument for Thomas using facts of the case and relevant legal theory to support it. – 5 points Based on the facts given, and what you know about the legal issues involved, how was this case decided? In favor of Darragh; or Thomas? Provide an explanation. – 5 pointsCase is typed according to the guidelines in the syllabus and is free of grammar and spelling mistakes. – 5 points

Answers

Based on legalities, Thomas has the right to refuse payment of the 8% commission to RE/MAX because he already stated his refusal during the meeting with Darragh nor did he sign the document that Darragh gave him during the meeting. Thus, there was no meeting of minds. 

Darragh is entitled to be given a reimbursement for his expenses incurred in securing documents that he willingly gave to Thomas. He can also ask Thomas for a recompensation for his labors but it will be according to Thomas's discretion. 

Darragh can't claim that he worked on implied consent from Thomas because Thomas specifically stated his refusal in paying for the 8% commission during their meeting but Darragh did not stop to renegotiate the commission nor convince Thomas to accept the contract. 

Analyze three decisions you made over the past six months. which of these were programmed and which were nonprogrammed? which model—the classical, administrative, or political—best describes the approach you took to making each decision?

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A programmed decision is one where we use past experience to take the next step, while non-programmed decisions are more unique and specific to the situation. One decision that I would like to share is the one where I had to buy my car and the decision process I went through. It would come under programmed decision as I was completely assisted by past experiences from my boyfriend who had the same history of exploring different options. The model that describes this decision would be the “classical” model as the information is available. The other decision I would like to share is the one where I had to take decision on my future after my bachelor’s degree. The final decision was to pursue further studies in USA but this decision is more of non-programmed nature and it is very specific based on the situation. The third decision that I would like to share would be that of choosing Rich land College as my destination.

The space on freeway is fixed at any instant of time. A supply curve that shows this is

Answers

The space on freeway is fixed at any instant of time. A supply curve that shows this is Perfect vertical.
Final answer:

The supply of freeway space at any instance is represented by a perfectly inelastic supply curve in economics. This curve is vertical and shows that the amount of available freeway space doesn't change, no matter the demand.

Explanation:

The space on a freeway is a representation of the concept of fixed supply. In Economics, a supply curve that demonstrates this is defined as a perfectly inelastic supply curve. This type of supply curve is vertical and it shows that the quantity supplied does not change regardless of the price. An example could be an artwork painted by a famous artist, where the supply remains the same regardless of how high the price might soar because the artist cannot paint another original piece of the same artwork. Hence, in the case of freeway space, the quantity (or availability) of the freeway does not change no matter the demand (or traffic).

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Basically, a ________ is the social media interface between a company and its external stakeholders.

Answers

The answer is community manager. It is because they are responsible of managing and planning events in the company or an organization and in supporting operations in terms of their customers in which they are called to be the interface between the stakeholders and their company.

Id executives are found liable for not properly protecting their company's assets and information systems, what type of law would apply in this situation ?

Answers

If executives are found liable for not properly protecting their company's assets and information systems, there is a type of law that is applied to this certain situation. This is Corporate liability. The company shall be punished if this will not be properly monitored.

 

Answer:

If executives are found liable for not properly protecting their company's assets and information systems, there is a type of law that is applied to this certain situation. This is Corporate liability. The company shall be punished if this will not be properly monitored.

Explanation:

Lamar was happy with his position within the organization. one day at lunch he overheard a couple of colleagues talking about some new programs that would create an employee of the week and of the​ month, and each month that employee would get to go to lunch with the boss. lamar and his family were just making ends​ meet, and with another baby on the way this salary was important to both him and his family. he really​ couldn't care less about the lunch with the boss. based on this​ information, what step of​ maslow's hierarchy is lamar likely to be​ on?

Answers

The answer is Lamar is in the physiological needs level. This level is the basis of Maslow's hierarchy of needs and comprise survival needs for instance the need for food, air, sleep, and reproduction. These needs are the necessities we all need independently for human existence.

The phrase "were just making ends​ meet" already indicates that Lamar is already having a really tough time trying to buy even the physiological needs that he must provide for himself and his family. Therefore, he is in the first stage of Maslow's hierarchy of needs which is physiological needs. 

The primary task of an organization's __________ team is to control access to systems or resources

Answers

The security administration team controls this level of access. By limiting which workers can access specific parts of the overall system, information that is supposed to be secured, away from the reach of the general population, can stay there. This makes sure that resources are limited in the proper fashion.

Henry is demonstrating his gross motor skills when he picks up cheerios from his high-chair tray.

Answers

This is incorrect. Henry is actually demonstrating fine motor skills. Gross motor skills are those skills that pertain to large movements like walking, balance, jumping, etc. Fine motor skills are those that pertain to fine manipulation like writing, picking up small objects (like the cheerrios), or tying a knot.

____ are finely skilled handwork in media such as ceramics, glass, wood, metal, and fibers

Answers

The answer is craftsmen

Crafts encompass skilled workmanship in areas like ceramics, glass, wood, metal, and fibers, often involving high creativity and functional artistry. Craftsmen trained through apprenticeships to master their trade, creating works now recognized as Fine Craft or Craft Art. These traditions now merge with technology while maintaining their cultural relevance and artistic value.

Crafts refer to finely skilled handwork in mediums such as ceramics, glass, wood, metal, and fibers. These mechanical arts are often classified as the vocational trades that incorporate a high level of skill and creativity, such as metalworking, enameling, and stained glass creation. Craftsmen and artisans in various cultures, including Korean artists, were known for their abilities to work in multiple media, frequently borrowing techniques and decorative motifs across different materials to create intricate designs.

Throughout history, craftsmen were trained through lengthy apprenticeships, starting from an early age and culminating in the creation of a "masterpiece" to demonstrate their expertise. These skilled individuals might fashion jewelry, forge iron, or blow glass into unique forms, using their own designs. Fine Craft or Craft Art is a category today that recognizes the sophisticated blend of technique, functional purpose, and artistic expression found in these trades.

The value placed on crafts has evolved over time, with traditional studio crafts like textile arts being respected alongside classical Fine Arts. Many artists now merge traditional craftsmanship with modern technology, such as the digital programming of looms in fiber arts. The high level of workmanship and finish associated with crafts reflects a combination of utility, aesthetics, and creative innovation that is central to cultural expression and heritage.

Studies have shown that employees who earn performance-based pay are more satisfied.

Answers

If you get payed by performance and you get payed a lot, you would be satisfied with the good\great work you did.

As flat screen tvs enter the maturity stage, what could happen to profits for individual firms?

Answers

the profits will peak and decline.
during this stage of the product development, the product is already widely accepted by the market.
Eventually, the newer and better product will start to appear and the previous one will started to lose popularity and decline in profits.

The market is initially in equilibrium at point
b. if demand shifts from d2 to d1 and the price of burritos remains constant at $4.00, there will be:

Answers

disequilibrium and a surplus because the quantity supplied will be greater than quantity demanded at a price of $4.00

The factor that distinguishes job-based pay from skill-based pay is that job-based pay policies:

Answers

Job-based pay policies are often used in the organization where tasks are narrowly defined these are the factor that distinguishes from the skill-based pay.
It offers the employees a more predictable method of pay. It also emphasizes the job specialization and seniority. It refers to the depth of job-related knowledge.

b. The factor that distinguishes job-based pay from skill-based pay is that job-based pay policies are often used in organizations where tasks are narrowly defined.

Job-based pay focuses on the specific job role and its associated responsibilities, compensating employees based on the role they fill rather than the skills they possess. In contrast, skill-based pay rewards employees for the range or depth of skills they have acquired, regardless of their specific job role within the organization.Research has indicated that job satisfaction is more strongly predicted by the work-content factors such as job variety, difficulty level, and role clarity, rather than pay level. However, organizations may still choose job-based pay structures, particularly where job roles are defined narrowly and there is a clear hierarchy of tasks and responsibilities.

Complete question

The factor that distinguishes job-based pay from skill-based pay is that job-based pay policies:

a. are often used in organizations with lower hierarchical structures.

b. are often used in organizations where tasks are narrowly defined.

c. require individuals to use their personal judgment to make decisions.

d. tend to be best suited for organizations with more decentralized authority.

By how much did the pace of tuition hikes exceed the 2013 average rate of inflation?

Answers

The pace of tuition hikes exceeded the 2013 average rate of inflation by two and 9/10 (2.9) percent. This was a smaller jump than pace of tuition hikes over the average rate of inflation 2012, which was four and one-half (4.5) percent.

Patricia is the owner of a floral shop. a successful global candle company approached her about selling its products in her shop. patricia knows this product and company can help her exceed her existing goals. selling candles is a(n) _____ for patricia.

Answers

It is called Opportunity. In spite of the fact that only one out of every odd state with a business opportunity law characterizes the term in a similar way, a large portion of them utilize the accompanying general criteria: A business opportunity includes the deal or rent of any item, administration, gear et cetera that will empower the buyer licensee to start a business

The texas instruments company has 9 percent coupon bonds on the market with seven years left to maturity. the bonds make annual payments. if the bond currently sells for $874.60, what is its ytm?

Answers

To Calculate YTM,

YTM = {C + (F-P)/n}/(F+P)/2

where C = coupon rate,

F = face value

P = price

n = no.of years

Therefore, YTM = {90+(1000-874.6)/7}/(1000+874.6)/2

=> 11.72%

A _____ is not possible when a brand name has a negative or vulgar connotation in the local language.
a. different brand names in different market strategy
b. adaptations and modifications strategy
c. product line contraction strategy
d. one-brand-name strategy

Answers

A (b) Adaptations and Modifications strategy is not possible when a brand name has a negative or vulgar connotation in the local language. This means that a one brand name strategy is not possible.

Communication without feedback is incomplete with clear examples discuss

Answers

Communication without feedback is incomplete. For example, Peter is supposed to organize a gathering event with some friends. Unfortunately, there is no response from his friends on the venue. Peter feels there is a communication lag. The gathering will not be materialized if no one responds to his proposal.

In most organizations, who is primarily responsible for appraising an employee's performance

Answers

it is and should be the managers job to do that

B. Employee's Direct Supervisor; Although 360-degree appraisals are advantageous, the supervisor's close interaction with the employee makes their role critical.

In most organizations, the individual primarily responsible for appraising an employee's performance is the employee's direct supervisor. Performance appraisals involve observing and measuring the employee's performance, recording these observations, communicating results to the employee, and recognizing high performance while devising ways of improving deficiencies. While there are many advantages to using 360-degree appraisals, where feedback is gathered from various sources like peers, customers, and subordinates, the traditional approach relies heavily on the supervisor due to their direct interaction and vested interest in the employee's performance.

Complete Question:

In most organizations, who is primarily responsible for appraising an employee's performance?

A. Human Resources (HR) Department

B. Employee's Direct Supervisor

C. Top Management

D. External Consultants

The evolving business environment has made ____________ a critical managerial function. controlling the status quo managing change limiting employee inputs cooperation with labor unions

Answers

Managing Change The fact that the business environment in the question was described as 'evolving' makes dealing with change the only viable answer. All the other answers are something that has no specific relation to that.

The evolving business environment has made managing change a critical managerial function. Thus, option B is the correct option.

As businesses face rapid technological advancements, shifting consumer demands, and market disruptions, the ability to adapt and navigate change has become paramount. Managers must proactively identify, evaluate, and implement strategic changes to ensure their organizations remain competitive and sustainable.

This includes adjusting business models, adopting new technologies, and embracing innovative practices. Effective change management involves creating a supportive culture, communicating clearly with stakeholders, and aligning resources and processes to successfully navigate transitions. In this dynamic landscape, the skilful management of change has become essential for organizational success.

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Chet asked drew if he could borrow a book. drew agrees and says that he will bring it to chet's room by 7 p.m. that night. when drew has not arrived by 7:30, chet says, "i knew i couldn't count on him to follow through on a promise—he's so irresponsible." chet's comment about drew's behavior is ____

Answers

Chets comment about Drews behavior shows that Drew is an unreliable character.

Honey bee company (hbc) enters into an oral contract with ivan under which he agrees to clean hbc's offices for two years. this contract is enforceable by

Answers

This contract with honey bee company and ivan who enter into an oral contract with ivan under which he agrees to clean hbc's offices for two years is enforceable by neither of the party. Neither of the party is enforceable by this contract they make.

Using the contribution approach for analyzing segment profitability and assuming all else remains constant in year 2, what would be the profit impact of dropping the west region in year 2?

Answers

The profit impact of dropping west region in year 2 would cause a considerable decline in profitability. The more you contribute, the more you receive back, and dropping this region decreases the probability of success. Keep the region and make sure all else remains constant.

Given the shift toward m-commerce, do a search on m-commerce(or mobile commerce) crime. identify and discuss the security threats this type of technology creates. prepare a presentation outlining your vision of the new opportunities for cybercrime that m-commerce may provide.

Answers

Final answer:

M-commerce poses security threats, including identity theft, malware attacks, and payment fraud. It also opens up new opportunities for mobile app-based attacks, mobile banking fraud, and mobile phishing.

Explanation:

M-commerce, or mobile commerce, refers to conducting commercial transactions through mobile devices such as smartphones and tablets. While m-commerce offers convenience and accessibility, it also poses security threats. Some security threats associated with m-commerce include:

Identity Theft: Hackers can intercept personal information, such as credit card details, as it is transmitted over mobile networks or stored on mobile devices.Malware and Phishing Attacks: Mobile devices can be vulnerable to malware and phishing attacks, where users are tricked into downloading malicious software or sharing sensitive information.Payment Fraud: Fraudsters can exploit vulnerabilities in mobile payment systems to make unauthorized transactions or steal payment credentials.

The shift towards m-commerce provides new opportunities for cybercrime, including:

Mobile App-based Attacks: Attackers can target vulnerabilities in mobile apps to gain unauthorized access to sensitive data or control over a user's device.Mobile Banking and Mobile Wallet Frauds: The rise of mobile banking and mobile wallet apps has led to increased instances of fraud, such as account takeovers and unauthorized transactions.Mobile Phishing: Cybercriminals can use phishing techniques to deceive mobile users into revealing their personal information through fake websites or messages.

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2 students are considering operating a fruit smoothie stand during their summer break. this is an alternative to summer employment with a local firm, where they would each earn $2865 over the three-month summer period. a fully equipped facility can be leased at a cost of $8130 for the summer. additional projected costs are $2239 for insurance and $2.3 per unit for materials and supplies. their fruit smoothies would be priced at $6.7 per unit. what is the accounting cost if q = 1203?

Answers

The accounting cost of running the smoothing stand for the summer is $13,135.90. To find this, we must first figure out which numbers given in the problem are relevant. Since we are dealing with accounting cost (and not economic cost), we know that we can ignore the opportunity cost ($2865 in foregone wages). We also can ignore the price of the smoothies since we do not need to compute revenue in order to determine accounting cost. Thus, the relevant numbers are $8130 for the lease, $2239 for insurance, the per unit cost of $2.3, and the total quantity of 1203. To find the accounting cost, we simply need to add our fixed costs and our variable costs. The fixed costs are given as $8130 and $2239. FC=8130+2239=$10369. Our variable cost, VC=2.3q, and we are told q=1203. Thus VC=2.3(1203)=$2766.90. To find our Total accounting costs, simply add fixed costs plus variable costs. FC+VC=2766.90+10369=$13135.90.

Sally, greg, juan, and amar are working on a project for a customer that is aimed at cutting the client's electrical costs. the four members of this workgroup are located throughout the midwest, and they are utilizing the phone, e-mail, and collaborative computing to complete this project. this workgroup is an example of a

Answers

The work group that represents in the scenario above is an example of modular group. A modular group is a type of group in which it represents how the group where able to utilize and use collaborative computing in having to do and complete the project.

Christopher is designing a security policy for his organization. he would like to use an approach that allows a reasonable list of activities but does not allow other activities. which permission level is he planning to use?

Answers

The permission level that Christoper is planning to use is prudent. It is because in this type of permission level, this will allow Christoper to do the things he wants to do such as not having to do other activities and only allows the reasonable ones to be done.

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